Finding the Third Proportional to 13,521,866 and 31,887,774

Step by Step Solution

1. Step 1: Write the proportion equation
   13,521,866 : 31,887,774 = 31,887,774 : x
2. Step 2: Convert to fraction form
   13,521,866/31,887,774 = 31,887,774/x
3. Step 3: Cross multiply
   13,521,866x = 31,887,774 × 31,887,774
4. Step 4: Simplify right side
   13,521,866x = 1,016,830,130,675,076
5. Step 5: Solve for x
   x = 1,016,830,130,675,076/13,521,866
6. Step 6: Final answer
   x = 75,198,950.40