Finding the Third Proportional to 156,514 and 337,490

Step by Step Solution

1. Step 1: Write the proportion equation
   156,514 : 337,490 = 337,490 : x
2. Step 2: Convert to fraction form
   156,514/337,490 = 337,490/x
3. Step 3: Cross multiply
   156,514x = 337,490 × 337,490
4. Step 4: Simplify right side
   156,514x = 113,899,500,100
5. Step 5: Solve for x
   x = 113,899,500,100/156,514
6. Step 6: Final answer
   x = 727,727.23