Finding the Third Proportional to 51,961,065 and 72,644,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,961,065 : 72,644,620.50 = 72,644,620.50 : x
2. Step 2: Convert to fraction form
   51,961,065/72,644,620.50 = 72,644,620.50/x
3. Step 3: Cross multiply
   51,961,065x = 72,644,620.50 × 72,644,620.50
4. Step 4: Simplify right side
   51,961,065x = 5,277,240,887,589,020
5. Step 5: Solve for x
   x = 5,277,240,887,589,020/51,961,065
6. Step 6: Final answer
   x = 101,561,445.82