Finding the Third Proportional to 705,271.50 and 991,008

Step by Step Solution

1. Step 1: Write the proportion equation
   705,271.50 : 991,008 = 991,008 : x
2. Step 2: Convert to fraction form
   705,271.50/991,008 = 991,008/x
3. Step 3: Cross multiply
   705,271.50x = 991,008 × 991,008
4. Step 4: Simplify right side
   705,271.50x = 982,096,856,064
5. Step 5: Solve for x
   x = 982,096,856,064/705,271.50
6. Step 6: Final answer
   x = 1,392,508.92