Finding the Third Proportional to 31,473,144 and 67,729,262

Step by Step Solution

1. Step 1: Write the proportion equation
   31,473,144 : 67,729,262 = 67,729,262 : x
2. Step 2: Convert to fraction form
   31,473,144/67,729,262 = 67,729,262/x
3. Step 3: Cross multiply
   31,473,144x = 67,729,262 × 67,729,262
4. Step 4: Simplify right side
   31,473,144x = 4,587,252,931,064,644
5. Step 5: Solve for x
   x = 4,587,252,931,064,644/31,473,144
6. Step 6: Final answer
   x = 145,751,340.61