Finding the Third Proportional to 221,808 and 485,594

Step by Step Solution

1. Step 1: Write the proportion equation
   221,808 : 485,594 = 485,594 : x
2. Step 2: Convert to fraction form
   221,808/485,594 = 485,594/x
3. Step 3: Cross multiply
   221,808x = 485,594 × 485,594
4. Step 4: Simplify right side
   221,808x = 235,801,532,836
5. Step 5: Solve for x
   x = 235,801,532,836/221,808
6. Step 6: Final answer
   x = 1,063,088.49