Finding the Third Proportional to 68,332 and 140,066

Step by Step Solution

1. Step 1: Write the proportion equation
   68,332 : 140,066 = 140,066 : x
2. Step 2: Convert to fraction form
   68,332/140,066 = 140,066/x
3. Step 3: Cross multiply
   68,332x = 140,066 × 140,066
4. Step 4: Simplify right side
   68,332x = 19,618,484,356
5. Step 5: Solve for x
   x = 19,618,484,356/68,332
6. Step 6: Final answer
   x = 287,105.37