Finding the Third Proportional to 3,615,786 and 7,785,078

Step by Step Solution

1. Step 1: Write the proportion equation
   3,615,786 : 7,785,078 = 7,785,078 : x
2. Step 2: Convert to fraction form
   3,615,786/7,785,078 = 7,785,078/x
3. Step 3: Cross multiply
   3,615,786x = 7,785,078 × 7,785,078
4. Step 4: Simplify right side
   3,615,786x = 60,607,439,466,084
5. Step 5: Solve for x
   x = 60,607,439,466,084/3,615,786
6. Step 6: Final answer
   x = 16,761,898.92