Finding the Third Proportional to 847,222.50 and 1,290,710.25

Step by Step Solution

1. Step 1: Write the proportion equation
   847,222.50 : 1,290,710.25 = 1,290,710.25 : x
2. Step 2: Convert to fraction form
   847,222.50/1,290,710.25 = 1,290,710.25/x
3. Step 3: Cross multiply
   847,222.50x = 1,290,710.25 × 1,290,710.25
4. Step 4: Simplify right side
   847,222.50x = 1,665,932,949,455.06
5. Step 5: Solve for x
   x = 1,665,932,949,455.06/847,222.50
6. Step 6: Final answer
   x = 1,966,346.44