Finding the Third Proportional to 69,417 and 143,754.75

Step by Step Solution

1. Step 1: Write the proportion equation
   69,417 : 143,754.75 = 143,754.75 : x
2. Step 2: Convert to fraction form
   69,417/143,754.75 = 143,754.75/x
3. Step 3: Cross multiply
   69,417x = 143,754.75 × 143,754.75
4. Step 4: Simplify right side
   69,417x = 20,665,428,147.56
5. Step 5: Solve for x
   x = 20,665,428,147.56/69,417
6. Step 6: Final answer
   x = 297,699.82