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Finding the Third Proportional to 12,929,428 and 28,128,904

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Solution

The third proportional to 12,929,428 and 28,128,904 is: 61,196,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929,428 : 28,128,904 = 28,128,904 : x
  2. Step 2: Convert to fraction form
    12,929,428/28,128,904 = 28,128,904/x
  3. Step 3: Cross multiply
    12,929,428x = 28,128,904 × 28,128,904
  4. Step 4: Simplify right side
    12,929,428x = 791,235,240,241,216
  5. Step 5: Solve for x
    x = 791,235,240,241,216/12,929,428
  6. Step 6: Final answer
    x = 61,196,461.30

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.