Finding the Third Proportional to 336,123 and 723,222

Step by Step Solution

1. Step 1: Write the proportion equation
   336,123 : 723,222 = 723,222 : x
2. Step 2: Convert to fraction form
   336,123/723,222 = 723,222/x
3. Step 3: Cross multiply
   336,123x = 723,222 × 723,222
4. Step 4: Simplify right side
   336,123x = 523,050,061,284
5. Step 5: Solve for x
   x = 523,050,061,284/336,123
6. Step 6: Final answer
   x = 1,556,126.96