Finding the Third Proportional to 313,494 and 469,510.50

Step by Step Solution

1. Step 1: Write the proportion equation
   313,494 : 469,510.50 = 469,510.50 : x
2. Step 2: Convert to fraction form
   313,494/469,510.50 = 469,510.50/x
3. Step 3: Cross multiply
   313,494x = 469,510.50 × 469,510.50
4. Step 4: Simplify right side
   313,494x = 220,440,109,610.25
5. Step 5: Solve for x
   x = 220,440,109,610.25/313,494
6. Step 6: Final answer
   x = 703,171.70