Finding the Third Proportional to 611,710 and 1,439,236

Step by Step Solution

1. Step 1: Write the proportion equation
   611,710 : 1,439,236 = 1,439,236 : x
2. Step 2: Convert to fraction form
   611,710/1,439,236 = 1,439,236/x
3. Step 3: Cross multiply
   611,710x = 1,439,236 × 1,439,236
4. Step 4: Simplify right side
   611,710x = 2,071,400,263,696
5. Step 5: Solve for x
   x = 2,071,400,263,696/611,710
6. Step 6: Final answer
   x = 3,386,245.55