Finding the Third Proportional to 363,595.50 and 781,164

Step by Step Solution

1. Step 1: Write the proportion equation
   363,595.50 : 781,164 = 781,164 : x
2. Step 2: Convert to fraction form
   363,595.50/781,164 = 781,164/x
3. Step 3: Cross multiply
   363,595.50x = 781,164 × 781,164
4. Step 4: Simplify right side
   363,595.50x = 610,217,194,896
5. Step 5: Solve for x
   x = 610,217,194,896/363,595.50
6. Step 6: Final answer
   x = 1,678,285.88