Finding the Third Proportional to 619,484.50 and 872,384

Step by Step Solution

1. Step 1: Write the proportion equation
   619,484.50 : 872,384 = 872,384 : x
2. Step 2: Convert to fraction form
   619,484.50/872,384 = 872,384/x
3. Step 3: Cross multiply
   619,484.50x = 872,384 × 872,384
4. Step 4: Simplify right side
   619,484.50x = 761,053,843,456
5. Step 5: Solve for x
   x = 761,053,843,456/619,484.50
6. Step 6: Final answer
   x = 1,228,527.66