Finding the Third Proportional to 550,573.50 and 725,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,573.50 : 725,581.50 = 725,581.50 : x
2. Step 2: Convert to fraction form
   550,573.50/725,581.50 = 725,581.50/x
3. Step 3: Cross multiply
   550,573.50x = 725,581.50 × 725,581.50
4. Step 4: Simplify right side
   550,573.50x = 526,468,513,142.25
5. Step 5: Solve for x
   x = 526,468,513,142.25/550,573.50
6. Step 6: Final answer
   x = 956,218.40