Finding the Third Proportional to 563,870.25 and 863,665.88

Step by Step Solution

1. Step 1: Write the proportion equation
   563,870.25 : 863,665.88 = 863,665.88 : x
2. Step 2: Convert to fraction form
   563,870.25/863,665.88 = 863,665.88/x
3. Step 3: Cross multiply
   563,870.25x = 863,665.88 × 863,665.88
4. Step 4: Simplify right side
   563,870.25x = 745,918,743,639.52
5. Step 5: Solve for x
   x = 745,918,743,639.52/563,870.25
6. Step 6: Final answer
   x = 1,322,855.29