Finding the Third Proportional to 639,922.50 and 1,382,472

Step by Step Solution

1. Step 1: Write the proportion equation
   639,922.50 : 1,382,472 = 1,382,472 : x
2. Step 2: Convert to fraction form
   639,922.50/1,382,472 = 1,382,472/x
3. Step 3: Cross multiply
   639,922.50x = 1,382,472 × 1,382,472
4. Step 4: Simplify right side
   639,922.50x = 1,911,228,830,784
5. Step 5: Solve for x
   x = 1,911,228,830,784/639,922.50
6. Step 6: Final answer
   x = 2,986,656.71