Finding the Third Proportional to 31,031,108 and 65,278,078

Step by Step Solution

1. Step 1: Write the proportion equation
   31,031,108 : 65,278,078 = 65,278,078 : x
2. Step 2: Convert to fraction form
   31,031,108/65,278,078 = 65,278,078/x
3. Step 3: Cross multiply
   31,031,108x = 65,278,078 × 65,278,078
4. Step 4: Simplify right side
   31,031,108x = 4,261,227,467,374,084
5. Step 5: Solve for x
   x = 4,261,227,467,374,084/31,031,108
6. Step 6: Final answer
   x = 137,321,151.00