Finding the Third Proportional to 68,334 and 140,070

Step by Step Solution

1. Step 1: Write the proportion equation
   68,334 : 140,070 = 140,070 : x
2. Step 2: Convert to fraction form
   68,334/140,070 = 140,070/x
3. Step 3: Cross multiply
   68,334x = 140,070 × 140,070
4. Step 4: Simplify right side
   68,334x = 19,619,604,900
5. Step 5: Solve for x
   x = 19,619,604,900/68,334
6. Step 6: Final answer
   x = 287,113.37