Finding the Third Proportional to 142,435.50 and 307,713

Step by Step Solution

1. Step 1: Write the proportion equation
   142,435.50 : 307,713 = 307,713 : x
2. Step 2: Convert to fraction form
   142,435.50/307,713 = 307,713/x
3. Step 3: Cross multiply
   142,435.50x = 307,713 × 307,713
4. Step 4: Simplify right side
   142,435.50x = 94,687,290,369
5. Step 5: Solve for x
   x = 94,687,290,369/142,435.50
6. Step 6: Final answer
   x = 664,773.11