Finding the Third Proportional to 563,892 and 863,700

Step by Step Solution

1. Step 1: Write the proportion equation
   563,892 : 863,700 = 863,700 : x
2. Step 2: Convert to fraction form
   563,892/863,700 = 863,700/x
3. Step 3: Cross multiply
   563,892x = 863,700 × 863,700
4. Step 4: Simplify right side
   563,892x = 745,977,690,000
5. Step 5: Solve for x
   x = 745,977,690,000/563,892
6. Step 6: Final answer
   x = 1,322,908.80