Finding the Third Proportional to 563,870 and 1,215,764

Step by Step Solution

1. Step 1: Write the proportion equation
   563,870 : 1,215,764 = 1,215,764 : x
2. Step 2: Convert to fraction form
   563,870/1,215,764 = 1,215,764/x
3. Step 3: Cross multiply
   563,870x = 1,215,764 × 1,215,764
4. Step 4: Simplify right side
   563,870x = 1,478,082,103,696
5. Step 5: Solve for x
   x = 1,478,082,103,696/563,870
6. Step 6: Final answer
   x = 2,621,317.15