Finding the Third Proportional to 69,448 and 143,820

Step by Step Solution

1. Step 1: Write the proportion equation
   69,448 : 143,820 = 143,820 : x
2. Step 2: Convert to fraction form
   69,448/143,820 = 143,820/x
3. Step 3: Cross multiply
   69,448x = 143,820 × 143,820
4. Step 4: Simplify right side
   69,448x = 20,684,192,400
5. Step 5: Solve for x
   x = 20,684,192,400/69,448
6. Step 6: Final answer
   x = 297,837.12