Finding the Third Proportional to 3,806,187 and 8,243,445

Step by Step Solution

1. Step 1: Write the proportion equation
   3,806,187 : 8,243,445 = 8,243,445 : x
2. Step 2: Convert to fraction form
   3,806,187/8,243,445 = 8,243,445/x
3. Step 3: Cross multiply
   3,806,187x = 8,243,445 × 8,243,445
4. Step 4: Simplify right side
   3,806,187x = 67,954,385,468,025
5. Step 5: Solve for x
   x = 67,954,385,468,025/3,806,187
6. Step 6: Final answer
   x = 17,853,664.43