Finding the Third Proportional to 645,291 and 1,002,451.50

Step by Step Solution

1. Step 1: Write the proportion equation
   645,291 : 1,002,451.50 = 1,002,451.50 : x
2. Step 2: Convert to fraction form
   645,291/1,002,451.50 = 1,002,451.50/x
3. Step 3: Cross multiply
   645,291x = 1,002,451.50 × 1,002,451.50
4. Step 4: Simplify right side
   645,291x = 1,004,909,009,852.25
5. Step 5: Solve for x
   x = 1,004,909,009,852.25/645,291
6. Step 6: Final answer
   x = 1,557,295.87