Finding the Third Proportional to 43,687,584 and 72,803,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,687,584 : 72,803,908.50 = 72,803,908.50 : x
2. Step 2: Convert to fraction form
   43,687,584/72,803,908.50 = 72,803,908.50/x
3. Step 3: Cross multiply
   43,687,584x = 72,803,908.50 × 72,803,908.50
4. Step 4: Simplify right side
   43,687,584x = 5,300,409,092,876,372
5. Step 5: Solve for x
   x = 5,300,409,092,876,372/43,687,584
6. Step 6: Final answer
   x = 121,325,296.75