Finding the Third Proportional to 31,195,488 and 67,323,420

Step by Step Solution

1. Step 1: Write the proportion equation
   31,195,488 : 67,323,420 = 67,323,420 : x
2. Step 2: Convert to fraction form
   31,195,488/67,323,420 = 67,323,420/x
3. Step 3: Cross multiply
   31,195,488x = 67,323,420 × 67,323,420
4. Step 4: Simplify right side
   31,195,488x = 4,532,442,880,496,400
5. Step 5: Solve for x
   x = 4,532,442,880,496,400/31,195,488
6. Step 6: Final answer
   x = 145,291,616.55