Finding the Third Proportional to 31,103,632 and 67,867,220

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103,632 : 67,867,220 = 67,867,220 : x
2. Step 2: Convert to fraction form
   31,103,632/67,867,220 = 67,867,220/x
3. Step 3: Cross multiply
   31,103,632x = 67,867,220 × 67,867,220
4. Step 4: Simplify right side
   31,103,632x = 4,605,959,550,528,400
5. Step 5: Solve for x
   x = 4,605,959,550,528,400/31,103,632
6. Step 6: Final answer
   x = 148,084,299.30