Finding the Third Proportional to 140,211 and 220,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,211 : 220,522.50 = 220,522.50 : x
2. Step 2: Convert to fraction form
   140,211/220,522.50 = 220,522.50/x
3. Step 3: Cross multiply
   140,211x = 220,522.50 × 220,522.50
4. Step 4: Simplify right side
   140,211x = 48,630,173,006.25
5. Step 5: Solve for x
   x = 48,630,173,006.25/140,211
6. Step 6: Final answer
   x = 346,835.65