Finding the Third Proportional to 101,310 and 220,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,310 : 220,458.50 = 220,458.50 : x
2. Step 2: Convert to fraction form
   101,310/220,458.50 = 220,458.50/x
3. Step 3: Cross multiply
   101,310x = 220,458.50 × 220,458.50
4. Step 4: Simplify right side
   101,310x = 48,601,950,222.25
5. Step 5: Solve for x
   x = 48,601,950,222.25/101,310
6. Step 6: Final answer
   x = 479,734.97