Finding the Third Proportional to 491,472 and 660,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   491,472 : 660,433.50 = 660,433.50 : x
2. Step 2: Convert to fraction form
   491,472/660,433.50 = 660,433.50/x
3. Step 3: Cross multiply
   491,472x = 660,433.50 × 660,433.50
4. Step 4: Simplify right side
   491,472x = 436,172,407,922.25
5. Step 5: Solve for x
   x = 436,172,407,922.25/491,472
6. Step 6: Final answer
   x = 887,481.70