Finding the Third Proportional to 619,477.50 and 872,374

Step by Step Solution

1. Step 1: Write the proportion equation
   619,477.50 : 872,374 = 872,374 : x
2. Step 2: Convert to fraction form
   619,477.50/872,374 = 872,374/x
3. Step 3: Cross multiply
   619,477.50x = 872,374 × 872,374
4. Step 4: Simplify right side
   619,477.50x = 761,036,395,876
5. Step 5: Solve for x
   x = 761,036,395,876/619,477.50
6. Step 6: Final answer
   x = 1,228,513.38