Finding the Third Proportional to 43,655,420 and 72,754,648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,655,420 : 72,754,648.50 = 72,754,648.50 : x
2. Step 2: Convert to fraction form
   43,655,420/72,754,648.50 = 72,754,648.50/x
3. Step 3: Cross multiply
   43,655,420x = 72,754,648.50 × 72,754,648.50
4. Step 4: Simplify right side
   43,655,420x = 5,293,238,878,358,552
5. Step 5: Solve for x
   x = 5,293,238,878,358,552/43,655,420
6. Step 6: Final answer
   x = 121,250,439.88