Finding the Third Proportional to 219,510 and 478,801.13

Step by Step Solution

1. Step 1: Write the proportion equation
   219,510 : 478,801.13 = 478,801.13 : x
2. Step 2: Convert to fraction form
   219,510/478,801.13 = 478,801.13/x
3. Step 3: Cross multiply
   219,510x = 478,801.13 × 478,801.13
4. Step 4: Simplify right side
   219,510x = 229,250,517,301.27
5. Step 5: Solve for x
   x = 229,250,517,301.27/219,510
6. Step 6: Final answer
   x = 1,044,373.91