Finding the Third Proportional to 31,449,960 and 67,272,009

Step by Step Solution

1. Step 1: Write the proportion equation
   31,449,960 : 67,272,009 = 67,272,009 : x
2. Step 2: Convert to fraction form
   31,449,960/67,272,009 = 67,272,009/x
3. Step 3: Cross multiply
   31,449,960x = 67,272,009 × 67,272,009
4. Step 4: Simplify right side
   31,449,960x = 4,525,523,194,896,081
5. Step 5: Solve for x
   x = 4,525,523,194,896,081/31,449,960
6. Step 6: Final answer
   x = 143,895,992.07