Finding the Third Proportional to 12,117,886 and 26,161,789

Step by Step Solution

1. Step 1: Write the proportion equation
   12,117,886 : 26,161,789 = 26,161,789 : x
2. Step 2: Convert to fraction form
   12,117,886/26,161,789 = 26,161,789/x
3. Step 3: Cross multiply
   12,117,886x = 26,161,789 × 26,161,789
4. Step 4: Simplify right side
   12,117,886x = 684,439,203,680,521
5. Step 5: Solve for x
   x = 684,439,203,680,521/12,117,886
6. Step 6: Final answer
   x = 56,481,733.17