Finding the Third Proportional to 550,549.50 and 801,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,549.50 : 801,856.50 = 801,856.50 : x
2. Step 2: Convert to fraction form
   550,549.50/801,856.50 = 801,856.50/x
3. Step 3: Cross multiply
   550,549.50x = 801,856.50 × 801,856.50
4. Step 4: Simplify right side
   550,549.50x = 642,973,846,592.25
5. Step 5: Solve for x
   x = 642,973,846,592.25/550,549.50
6. Step 6: Final answer
   x = 1,167,876.54