Finding the Third Proportional to 69,446 and 143,815

Step by Step Solution

1. Step 1: Write the proportion equation
   69,446 : 143,815 = 143,815 : x
2. Step 2: Convert to fraction form
   69,446/143,815 = 143,815/x
3. Step 3: Cross multiply
   69,446x = 143,815 × 143,815
4. Step 4: Simplify right side
   69,446x = 20,682,754,225
5. Step 5: Solve for x
   x = 20,682,754,225/69,446
6. Step 6: Final answer
   x = 297,824.99