Finding the Third Proportional to 156,389.38 and 341,449

Step by Step Solution

1. Step 1: Write the proportion equation
   156,389.38 : 341,449 = 341,449 : x
2. Step 2: Convert to fraction form
   156,389.38/341,449 = 341,449/x
3. Step 3: Cross multiply
   156,389.38x = 341,449 × 341,449
4. Step 4: Simplify right side
   156,389.38x = 116,587,419,601
5. Step 5: Solve for x
   x = 116,587,419,601/156,389.38
6. Step 6: Final answer
   x = 745,494.50