Finding the Third Proportional to 142,666.50 and 337,390.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,666.50 : 337,390.50 = 337,390.50 : x
2. Step 2: Convert to fraction form
   142,666.50/337,390.50 = 337,390.50/x
3. Step 3: Cross multiply
   142,666.50x = 337,390.50 × 337,390.50
4. Step 4: Simplify right side
   142,666.50x = 113,832,349,490.25
5. Step 5: Solve for x
   x = 113,832,349,490.25/142,666.50
6. Step 6: Final answer
   x = 797,891.23