Finding the Third Proportional to 31,378,725 and 67,969,179

Step by Step Solution

1. Step 1: Write the proportion equation
   31,378,725 : 67,969,179 = 67,969,179 : x
2. Step 2: Convert to fraction form
   31,378,725/67,969,179 = 67,969,179/x
3. Step 3: Cross multiply
   31,378,725x = 67,969,179 × 67,969,179
4. Step 4: Simplify right side
   31,378,725x = 4,619,809,293,934,041
5. Step 5: Solve for x
   x = 4,619,809,293,934,041/31,378,725
6. Step 6: Final answer
   x = 147,227,438.14