Finding the Third Proportional to 147,623.50 and 313,700

Step by Step Solution

1. Step 1: Write the proportion equation
   147,623.50 : 313,700 = 313,700 : x
2. Step 2: Convert to fraction form
   147,623.50/313,700 = 313,700/x
3. Step 3: Cross multiply
   147,623.50x = 313,700 × 313,700
4. Step 4: Simplify right side
   147,623.50x = 98,407,690,000
5. Step 5: Solve for x
   x = 98,407,690,000/147,623.50
6. Step 6: Final answer
   x = 666,612.63