Finding the Third Proportional to 11,718,979 and 25,707,061

Step by Step Solution

1. Step 1: Write the proportion equation
   11,718,979 : 25,707,061 = 25,707,061 : x
2. Step 2: Convert to fraction form
   11,718,979/25,707,061 = 25,707,061/x
3. Step 3: Cross multiply
   11,718,979x = 25,707,061 × 25,707,061
4. Step 4: Simplify right side
   11,718,979x = 660,852,985,257,721
5. Step 5: Solve for x
   x = 660,852,985,257,721/11,718,979
6. Step 6: Final answer
   x = 56,391,686.11