Finding the Third Proportional to 70,418 and 143,704

Step by Step Solution

1. Step 1: Write the proportion equation
   70,418 : 143,704 = 143,704 : x
2. Step 2: Convert to fraction form
   70,418/143,704 = 143,704/x
3. Step 3: Cross multiply
   70,418x = 143,704 × 143,704
4. Step 4: Simplify right side
   70,418x = 20,650,839,616
5. Step 5: Solve for x
   x = 20,650,839,616/70,418
6. Step 6: Final answer
   x = 293,260.81