Finding the Third Proportional to 521,640 and 1,142,910

Step by Step Solution

1. Step 1: Write the proportion equation
   521,640 : 1,142,910 = 1,142,910 : x
2. Step 2: Convert to fraction form
   521,640/1,142,910 = 1,142,910/x
3. Step 3: Cross multiply
   521,640x = 1,142,910 × 1,142,910
4. Step 4: Simplify right side
   521,640x = 1,306,243,268,100
5. Step 5: Solve for x
   x = 1,306,243,268,100/521,640
6. Step 6: Final answer
   x = 2,504,108.71