Finding the Third Proportional to 1,243,626 and 2,657,892

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,626 : 2,657,892 = 2,657,892 : x
2. Step 2: Convert to fraction form
   1,243,626/2,657,892 = 2,657,892/x
3. Step 3: Cross multiply
   1,243,626x = 2,657,892 × 2,657,892
4. Step 4: Simplify right side
   1,243,626x = 7,064,389,883,664
5. Step 5: Solve for x
   x = 7,064,389,883,664/1,243,626
6. Step 6: Final answer
   x = 5,680,477.80