Finding the Third Proportional to 819,200.25 and 1,271,932.50

Step by Step Solution

1. Step 1: Write the proportion equation
   819,200.25 : 1,271,932.50 = 1,271,932.50 : x
2. Step 2: Convert to fraction form
   819,200.25/1,271,932.50 = 1,271,932.50/x
3. Step 3: Cross multiply
   819,200.25x = 1,271,932.50 × 1,271,932.50
4. Step 4: Simplify right side
   819,200.25x = 1,617,812,284,556.25
5. Step 5: Solve for x
   x = 1,617,812,284,556.25/819,200.25
6. Step 6: Final answer
   x = 1,974,867.91