Finding the Third Proportional to 130,688.50 and 283,505

Step by Step Solution

1. Step 1: Write the proportion equation
   130,688.50 : 283,505 = 283,505 : x
2. Step 2: Convert to fraction form
   130,688.50/283,505 = 283,505/x
3. Step 3: Cross multiply
   130,688.50x = 283,505 × 283,505
4. Step 4: Simplify right side
   130,688.50x = 80,375,085,025
5. Step 5: Solve for x
   x = 80,375,085,025/130,688.50
6. Step 6: Final answer
   x = 615,012.68