Finding the Third Proportional to 4,072,238 and 8,426,359

Step by Step Solution

1. Step 1: Write the proportion equation
   4,072,238 : 8,426,359 = 8,426,359 : x
2. Step 2: Convert to fraction form
   4,072,238/8,426,359 = 8,426,359/x
3. Step 3: Cross multiply
   4,072,238x = 8,426,359 × 8,426,359
4. Step 4: Simplify right side
   4,072,238x = 71,003,525,996,881
5. Step 5: Solve for x
   x = 71,003,525,996,881/4,072,238
6. Step 6: Final answer
   x = 17,435,996.13