Finding the Third Proportional to 3,785,400 and 8,209,674

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785,400 : 8,209,674 = 8,209,674 : x
2. Step 2: Convert to fraction form
   3,785,400/8,209,674 = 8,209,674/x
3. Step 3: Cross multiply
   3,785,400x = 8,209,674 × 8,209,674
4. Step 4: Simplify right side
   3,785,400x = 67,398,747,186,276
5. Step 5: Solve for x
   x = 67,398,747,186,276/3,785,400
6. Step 6: Final answer
   x = 17,804,920.80