Finding the Third Proportional to 67,870.50 and 137,565

Step by Step Solution

1. Step 1: Write the proportion equation
   67,870.50 : 137,565 = 137,565 : x
2. Step 2: Convert to fraction form
   67,870.50/137,565 = 137,565/x
3. Step 3: Cross multiply
   67,870.50x = 137,565 × 137,565
4. Step 4: Simplify right side
   67,870.50x = 18,924,129,225
5. Step 5: Solve for x
   x = 18,924,129,225/67,870.50
6. Step 6: Final answer
   x = 278,827.02