Finding the Third Proportional to 43,645,776 and 72,740,029.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,645,776 : 72,740,029.50 = 72,740,029.50 : x
2. Step 2: Convert to fraction form
   43,645,776/72,740,029.50 = 72,740,029.50/x
3. Step 3: Cross multiply
   43,645,776x = 72,740,029.50 × 72,740,029.50
4. Step 4: Simplify right side
   43,645,776x = 5,291,111,891,660,870
5. Step 5: Solve for x
   x = 5,291,111,891,660,870/43,645,776
6. Step 6: Final answer
   x = 121,228,498.53