Finding the Third Proportional to 100,810.50 and 220,068

Step by Step Solution

1. Step 1: Write the proportion equation
   100,810.50 : 220,068 = 220,068 : x
2. Step 2: Convert to fraction form
   100,810.50/220,068 = 220,068/x
3. Step 3: Cross multiply
   100,810.50x = 220,068 × 220,068
4. Step 4: Simplify right side
   100,810.50x = 48,429,924,624
5. Step 5: Solve for x
   x = 48,429,924,624/100,810.50
6. Step 6: Final answer
   x = 480,405.56