Finding the Third Proportional to 13,262,949 and 19,943,617.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,262,949 : 19,943,617.50 = 19,943,617.50 : x
2. Step 2: Convert to fraction form
   13,262,949/19,943,617.50 = 19,943,617.50/x
3. Step 3: Cross multiply
   13,262,949x = 19,943,617.50 × 19,943,617.50
4. Step 4: Simplify right side
   13,262,949x = 397,747,878,986,306.25
5. Step 5: Solve for x
   x = 397,747,878,986,306.25/13,262,949
6. Step 6: Final answer
   x = 29,989,399.72