Finding the Third Proportional to 472,047.75 and 711,990

Step by Step Solution

1. Step 1: Write the proportion equation
   472,047.75 : 711,990 = 711,990 : x
2. Step 2: Convert to fraction form
   472,047.75/711,990 = 711,990/x
3. Step 3: Cross multiply
   472,047.75x = 711,990 × 711,990
4. Step 4: Simplify right side
   472,047.75x = 506,929,760,100
5. Step 5: Solve for x
   x = 506,929,760,100/472,047.75
6. Step 6: Final answer
   x = 1,073,895.09