Finding the Third Proportional to 69,012 and 142,434

Step by Step Solution

1. Step 1: Write the proportion equation
   69,012 : 142,434 = 142,434 : x
2. Step 2: Convert to fraction form
   69,012/142,434 = 142,434/x
3. Step 3: Cross multiply
   69,012x = 142,434 × 142,434
4. Step 4: Simplify right side
   69,012x = 20,287,444,356
5. Step 5: Solve for x
   x = 20,287,444,356/69,012
6. Step 6: Final answer
   x = 293,969.81