Finding the Third Proportional to 31,749,949.69 and 67,315,014.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,749,949.69 : 67,315,014.56 = 67,315,014.56 : x
2. Step 2: Convert to fraction form
   31,749,949.69/67,315,014.56 = 67,315,014.56/x
3. Step 3: Cross multiply
   31,749,949.69x = 67,315,014.56 × 67,315,014.56
4. Step 4: Simplify right side
   31,749,949.69x = 4,531,311,185,549,587
5. Step 5: Solve for x
   x = 4,531,311,185,549,587/31,749,949.69
6. Step 6: Final answer
   x = 142,718,688.70