Finding the Third Proportional to 711,972 and 1,555,236

Step by Step Solution

1. Step 1: Write the proportion equation
   711,972 : 1,555,236 = 1,555,236 : x
2. Step 2: Convert to fraction form
   711,972/1,555,236 = 1,555,236/x
3. Step 3: Cross multiply
   711,972x = 1,555,236 × 1,555,236
4. Step 4: Simplify right side
   711,972x = 2,418,759,015,696
5. Step 5: Solve for x
   x = 2,418,759,015,696/711,972
6. Step 6: Final answer
   x = 3,397,267.05