Finding the Third Proportional to 660,948 and 891,775.50

Step by Step Solution

1. Step 1: Write the proportion equation
   660,948 : 891,775.50 = 891,775.50 : x
2. Step 2: Convert to fraction form
   660,948/891,775.50 = 891,775.50/x
3. Step 3: Cross multiply
   660,948x = 891,775.50 × 891,775.50
4. Step 4: Simplify right side
   660,948x = 795,263,542,400.25
5. Step 5: Solve for x
   x = 795,263,542,400.25/660,948
6. Step 6: Final answer
   x = 1,203,216.50