Finding the Third Proportional to 521,643 and 1,142,916

Step by Step Solution

1. Step 1: Write the proportion equation
   521,643 : 1,142,916 = 1,142,916 : x
2. Step 2: Convert to fraction form
   521,643/1,142,916 = 1,142,916/x
3. Step 3: Cross multiply
   521,643x = 1,142,916 × 1,142,916
4. Step 4: Simplify right side
   521,643x = 1,306,256,983,056
5. Step 5: Solve for x
   x = 1,306,256,983,056/521,643
6. Step 6: Final answer
   x = 2,504,120.60