Finding the Third Proportional to 220,158 and 349,879.50

Step by Step Solution

1. Step 1: Write the proportion equation
   220,158 : 349,879.50 = 349,879.50 : x
2. Step 2: Convert to fraction form
   220,158/349,879.50 = 349,879.50/x
3. Step 3: Cross multiply
   220,158x = 349,879.50 × 349,879.50
4. Step 4: Simplify right side
   220,158x = 122,415,664,520.25
5. Step 5: Solve for x
   x = 122,415,664,520.25/220,158
6. Step 6: Final answer
   x = 556,035.50