Finding the Third Proportional to 550,573.50 and 801,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,573.50 : 801,892.50 = 801,892.50 : x
2. Step 2: Convert to fraction form
   550,573.50/801,892.50 = 801,892.50/x
3. Step 3: Cross multiply
   550,573.50x = 801,892.50 × 801,892.50
4. Step 4: Simplify right side
   550,573.50x = 643,031,581,556.25
5. Step 5: Solve for x
   x = 643,031,581,556.25/550,573.50
6. Step 6: Final answer
   x = 1,167,930.50