Finding the Third Proportional to 3,806,134 and 8,206,428

Step by Step Solution

1. Step 1: Write the proportion equation
   3,806,134 : 8,206,428 = 8,206,428 : x
2. Step 2: Convert to fraction form
   3,806,134/8,206,428 = 8,206,428/x
3. Step 3: Cross multiply
   3,806,134x = 8,206,428 × 8,206,428
4. Step 4: Simplify right side
   3,806,134x = 67,345,460,519,184
5. Step 5: Solve for x
   x = 67,345,460,519,184/3,806,134
6. Step 6: Final answer
   x = 17,693,927.89