Finding the Third Proportional to 1,071,438 and 2,231,634

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,438 : 2,231,634 = 2,231,634 : x
2. Step 2: Convert to fraction form
   1,071,438/2,231,634 = 2,231,634/x
3. Step 3: Cross multiply
   1,071,438x = 2,231,634 × 2,231,634
4. Step 4: Simplify right side
   1,071,438x = 4,980,190,309,956
5. Step 5: Solve for x
   x = 4,980,190,309,956/1,071,438
6. Step 6: Final answer
   x = 4,648,136.72