Finding the Third Proportional to 31,384,573 and 67,578,358

Step by Step Solution

1. Step 1: Write the proportion equation
   31,384,573 : 67,578,358 = 67,578,358 : x
2. Step 2: Convert to fraction form
   31,384,573/67,578,358 = 67,578,358/x
3. Step 3: Cross multiply
   31,384,573x = 67,578,358 × 67,578,358
4. Step 4: Simplify right side
   31,384,573x = 4,566,834,469,976,164
5. Step 5: Solve for x
   x = 4,566,834,469,976,164/31,384,573
6. Step 6: Final answer
   x = 145,512,079.13