Finding the Third Proportional to 13,155,990 and 31,694,257

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155,990 : 31,694,257 = 31,694,257 : x
2. Step 2: Convert to fraction form
   13,155,990/31,694,257 = 31,694,257/x
3. Step 3: Cross multiply
   13,155,990x = 31,694,257 × 31,694,257
4. Step 4: Simplify right side
   13,155,990x = 1,004,525,926,782,049
5. Step 5: Solve for x
   x = 1,004,525,926,782,049/13,155,990
6. Step 6: Final answer
   x = 76,355,023.59