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Finding the Third Proportional to 125,878 and 257,588

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Solution

The third proportional to 125,878 and 257,588 is: 527,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,878 : 257,588 = 257,588 : x
  2. Step 2: Convert to fraction form
    125,878/257,588 = 257,588/x
  3. Step 3: Cross multiply
    125,878x = 257,588 × 257,588
  4. Step 4: Simplify right side
    125,878x = 66,351,577,744
  5. Step 5: Solve for x
    x = 66,351,577,744/125,878
  6. Step 6: Final answer
    x = 527,110.20

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.