Finding the Third Proportional to 218,080.50 and 476,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   218,080.50 : 476,665.50 = 476,665.50 : x
2. Step 2: Convert to fraction form
   218,080.50/476,665.50 = 476,665.50/x
3. Step 3: Cross multiply
   218,080.50x = 476,665.50 × 476,665.50
4. Step 4: Simplify right side
   218,080.50x = 227,209,998,890.25
5. Step 5: Solve for x
   x = 227,209,998,890.25/218,080.50
6. Step 6: Final answer
   x = 1,041,862.98