Finding the Third Proportional to 31,103,640 and 67,867,236

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103,640 : 67,867,236 = 67,867,236 : x
2. Step 2: Convert to fraction form
   31,103,640/67,867,236 = 67,867,236/x
3. Step 3: Cross multiply
   31,103,640x = 67,867,236 × 67,867,236
4. Step 4: Simplify right side
   31,103,640x = 4,605,961,722,279,696
5. Step 5: Solve for x
   x = 4,605,961,722,279,696/31,103,640
6. Step 6: Final answer
   x = 148,084,331.04