Finding the Third Proportional to 3,785,988 and 8,210,760

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785,988 : 8,210,760 = 8,210,760 : x
2. Step 2: Convert to fraction form
   3,785,988/8,210,760 = 8,210,760/x
3. Step 3: Cross multiply
   3,785,988x = 8,210,760 × 8,210,760
4. Step 4: Simplify right side
   3,785,988x = 67,416,579,777,600
5. Step 5: Solve for x
   x = 67,416,579,777,600/3,785,988
6. Step 6: Final answer
   x = 17,806,865.68