Finding the Third Proportional to 611,714 and 1,439,231

Step by Step Solution

1. Step 1: Write the proportion equation
   611,714 : 1,439,231 = 1,439,231 : x
2. Step 2: Convert to fraction form
   611,714/1,439,231 = 1,439,231/x
3. Step 3: Cross multiply
   611,714x = 1,439,231 × 1,439,231
4. Step 4: Simplify right side
   611,714x = 2,071,385,871,361
5. Step 5: Solve for x
   x = 2,071,385,871,361/611,714
6. Step 6: Final answer
   x = 3,386,199.88