Finding the Third Proportional to 451,599 and 664,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   451,599 : 664,922.50 = 664,922.50 : x
2. Step 2: Convert to fraction form
   451,599/664,922.50 = 664,922.50/x
3. Step 3: Cross multiply
   451,599x = 664,922.50 × 664,922.50
4. Step 4: Simplify right side
   451,599x = 442,121,931,006.25
5. Step 5: Solve for x
   x = 442,121,931,006.25/451,599
6. Step 6: Final answer
   x = 979,014.42