Finding the Third Proportional to 363,123 and 559,996.50

Step by Step Solution

1. Step 1: Write the proportion equation
   363,123 : 559,996.50 = 559,996.50 : x
2. Step 2: Convert to fraction form
   363,123/559,996.50 = 559,996.50/x
3. Step 3: Cross multiply
   363,123x = 559,996.50 × 559,996.50
4. Step 4: Simplify right side
   363,123x = 313,596,080,012.25
5. Step 5: Solve for x
   x = 313,596,080,012.25/363,123
6. Step 6: Final answer
   x = 863,608.42