Finding the Third Proportional to 551,635.31 and 843,498.56

Step by Step Solution

1. Step 1: Write the proportion equation
   551,635.31 : 843,498.56 = 843,498.56 : x
2. Step 2: Convert to fraction form
   551,635.31/843,498.56 = 843,498.56/x
3. Step 3: Cross multiply
   551,635.31x = 843,498.56 × 843,498.56
4. Step 4: Simplify right side
   551,635.31x = 711,489,824,939.57
5. Step 5: Solve for x
   x = 711,489,824,939.57/551,635.31
6. Step 6: Final answer
   x = 1,289,782.96