Finding the Third Proportional to 65,375 and 138,600

Step by Step Solution

1. Step 1: Write the proportion equation
   65,375 : 138,600 = 138,600 : x
2. Step 2: Convert to fraction form
   65,375/138,600 = 138,600/x
3. Step 3: Cross multiply
   65,375x = 138,600 × 138,600
4. Step 4: Simplify right side
   65,375x = 19,209,960,000
5. Step 5: Solve for x
   x = 19,209,960,000/65,375
6. Step 6: Final answer
   x = 293,842.60