Finding the Third Proportional to 3,785,377 and 8,209,642

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785,377 : 8,209,642 = 8,209,642 : x
2. Step 2: Convert to fraction form
   3,785,377/8,209,642 = 8,209,642/x
3. Step 3: Cross multiply
   3,785,377x = 8,209,642 × 8,209,642
4. Step 4: Simplify right side
   3,785,377x = 67,398,221,768,164
5. Step 5: Solve for x
   x = 67,398,221,768,164/3,785,377
6. Step 6: Final answer
   x = 17,804,890.18