Finding the Third Proportional to 451,596 and 664,918.50

Step by Step Solution

1. Step 1: Write the proportion equation
   451,596 : 664,918.50 = 664,918.50 : x
2. Step 2: Convert to fraction form
   451,596/664,918.50 = 664,918.50/x
3. Step 3: Cross multiply
   451,596x = 664,918.50 × 664,918.50
4. Step 4: Simplify right side
   451,596x = 442,116,611,642.25
5. Step 5: Solve for x
   x = 442,116,611,642.25/451,596
6. Step 6: Final answer
   x = 979,009.14