Finding the Third Proportional to 31,103,636 and 67,867,228

Step by Step Solution

1. Step 1: Write the proportion equation
   31,103,636 : 67,867,228 = 67,867,228 : x
2. Step 2: Convert to fraction form
   31,103,636/67,867,228 = 67,867,228/x
3. Step 3: Cross multiply
   31,103,636x = 67,867,228 × 67,867,228
4. Step 4: Simplify right side
   31,103,636x = 4,605,960,636,403,984
5. Step 5: Solve for x
   x = 4,605,960,636,403,984/31,103,636
6. Step 6: Final answer
   x = 148,084,315.17