Finding the Third Proportional to 31,211,128 and 67,024,144

Step by Step Solution

1. Step 1: Write the proportion equation
   31,211,128 : 67,024,144 = 67,024,144 : x
2. Step 2: Convert to fraction form
   31,211,128/67,024,144 = 67,024,144/x
3. Step 3: Cross multiply
   31,211,128x = 67,024,144 × 67,024,144
4. Step 4: Simplify right side
   31,211,128x = 4,492,235,878,932,736
5. Step 5: Solve for x
   x = 4,492,235,878,932,736/31,211,128
6. Step 6: Final answer
   x = 143,930,583.95