Finding the Third Proportional to 142,681.50 and 337,428

Step by Step Solution

1. Step 1: Write the proportion equation
   142,681.50 : 337,428 = 337,428 : x
2. Step 2: Convert to fraction form
   142,681.50/337,428 = 337,428/x
3. Step 3: Cross multiply
   142,681.50x = 337,428 × 337,428
4. Step 4: Simplify right side
   142,681.50x = 113,857,655,184
5. Step 5: Solve for x
   x = 113,857,655,184/142,681.50
6. Step 6: Final answer
   x = 797,984.71