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Finding the Third Proportional to 62,840 and 135,518

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Solution

The third proportional to 62,840 and 135,518 is: 292,252.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,840 : 135,518 = 135,518 : x
  2. Step 2: Convert to fraction form
    62,840/135,518 = 135,518/x
  3. Step 3: Cross multiply
    62,840x = 135,518 × 135,518
  4. Step 4: Simplify right side
    62,840x = 18,365,128,324
  5. Step 5: Solve for x
    x = 18,365,128,324/62,840
  6. Step 6: Final answer
    x = 292,252.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.