Finding the Third Proportional to 31,490,911 and 47,072,422

Step by Step Solution

1. Step 1: Write the proportion equation
   31,490,911 : 47,072,422 = 47,072,422 : x
2. Step 2: Convert to fraction form
   31,490,911/47,072,422 = 47,072,422/x
3. Step 3: Cross multiply
   31,490,911x = 47,072,422 × 47,072,422
4. Step 4: Simplify right side
   31,490,911x = 2,215,812,912,946,084
5. Step 5: Solve for x
   x = 2,215,812,912,946,084/31,490,911
6. Step 6: Final answer
   x = 70,363,569.76