Finding the Third Proportional to 142,332 and 308,040

Step by Step Solution

1. Step 1: Write the proportion equation
   142,332 : 308,040 = 308,040 : x
2. Step 2: Convert to fraction form
   142,332/308,040 = 308,040/x
3. Step 3: Cross multiply
   142,332x = 308,040 × 308,040
4. Step 4: Simplify right side
   142,332x = 94,888,641,600
5. Step 5: Solve for x
   x = 94,888,641,600/142,332
6. Step 6: Final answer
   x = 666,671.17