Finding the Third Proportional to 217,812 and 462,060

Step by Step Solution

1. Step 1: Write the proportion equation
   217,812 : 462,060 = 462,060 : x
2. Step 2: Convert to fraction form
   217,812/462,060 = 462,060/x
3. Step 3: Cross multiply
   217,812x = 462,060 × 462,060
4. Step 4: Simplify right side
   217,812x = 213,499,443,600
5. Step 5: Solve for x
   x = 213,499,443,600/217,812
6. Step 6: Final answer
   x = 980,200.56