Finding the Third Proportional to 221,922.28 and 485,359.59

Step by Step Solution

1. Step 1: Write the proportion equation
   221,922.28 : 485,359.59 = 485,359.59 : x
2. Step 2: Convert to fraction form
   221,922.28/485,359.59 = 485,359.59/x
3. Step 3: Cross multiply
   221,922.28x = 485,359.59 × 485,359.59
4. Step 4: Simplify right side
   221,922.28x = 235,573,935,245.17
5. Step 5: Solve for x
   x = 235,573,935,245.17/221,922.28
6. Step 6: Final answer
   x = 1,061,515.47