Finding the Third Proportional to 157,279 and 342,205.50

Step by Step Solution

1. Step 1: Write the proportion equation
   157,279 : 342,205.50 = 342,205.50 : x
2. Step 2: Convert to fraction form
   157,279/342,205.50 = 342,205.50/x
3. Step 3: Cross multiply
   157,279x = 342,205.50 × 342,205.50
4. Step 4: Simplify right side
   157,279x = 117,104,604,230.25
5. Step 5: Solve for x
   x = 117,104,604,230.25/157,279
6. Step 6: Final answer
   x = 744,566.05