Finding the Third Proportional to 30,991,074 and 67,562,287.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,991,074 : 67,562,287.50 = 67,562,287.50 : x
2. Step 2: Convert to fraction form
   30,991,074/67,562,287.50 = 67,562,287.50/x
3. Step 3: Cross multiply
   30,991,074x = 67,562,287.50 × 67,562,287.50
4. Step 4: Simplify right side
   30,991,074x = 4,564,662,692,232,656
5. Step 5: Solve for x
   x = 4,564,662,692,232,656/30,991,074
6. Step 6: Final answer
   x = 147,289,593.52