Finding the Third Proportional to 111,979,107 and 173,864,335.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,979,107 : 173,864,335.50 = 173,864,335.50 : x
2. Step 2: Convert to fraction form
   111,979,107/173,864,335.50 = 173,864,335.50/x
3. Step 3: Cross multiply
   111,979,107x = 173,864,335.50 × 173,864,335.50
4. Step 4: Simplify right side
   111,979,107x = 30,228,807,158,856,560
5. Step 5: Solve for x
   x = 30,228,807,158,856,560/111,979,107
6. Step 6: Final answer
   x = 269,950,421.72