Finding the Third Proportional to 31,473,143 and 67,729,260

Step by Step Solution

1. Step 1: Write the proportion equation
   31,473,143 : 67,729,260 = 67,729,260 : x
2. Step 2: Convert to fraction form
   31,473,143/67,729,260 = 67,729,260/x
3. Step 3: Cross multiply
   31,473,143x = 67,729,260 × 67,729,260
4. Step 4: Simplify right side
   31,473,143x = 4,587,252,660,147,600
5. Step 5: Solve for x
   x = 4,587,252,660,147,600/31,473,143
6. Step 6: Final answer
   x = 145,751,336.63