Finding the Third Proportional to 611,727 and 1,347,870

Step by Step Solution

1. Step 1: Write the proportion equation
   611,727 : 1,347,870 = 1,347,870 : x
2. Step 2: Convert to fraction form
   611,727/1,347,870 = 1,347,870/x
3. Step 3: Cross multiply
   611,727x = 1,347,870 × 1,347,870
4. Step 4: Simplify right side
   611,727x = 1,816,753,536,900
5. Step 5: Solve for x
   x = 1,816,753,536,900/611,727
6. Step 6: Final answer
   x = 2,969,876.33