Finding the Third Proportional to 318,127.50 and 466,499.25

Step by Step Solution

1. Step 1: Write the proportion equation
   318,127.50 : 466,499.25 = 466,499.25 : x
2. Step 2: Convert to fraction form
   318,127.50/466,499.25 = 466,499.25/x
3. Step 3: Cross multiply
   318,127.50x = 466,499.25 × 466,499.25
4. Step 4: Simplify right side
   318,127.50x = 217,621,550,250.56
5. Step 5: Solve for x
   x = 217,621,550,250.56/318,127.50
6. Step 6: Final answer
   x = 684,070.22