Finding the Third Proportional to 70,322 and 143,256

Step by Step Solution

1. Step 1: Write the proportion equation
   70,322 : 143,256 = 143,256 : x
2. Step 2: Convert to fraction form
   70,322/143,256 = 143,256/x
3. Step 3: Cross multiply
   70,322x = 143,256 × 143,256
4. Step 4: Simplify right side
   70,322x = 20,522,281,536
5. Step 5: Solve for x
   x = 20,522,281,536/70,322
6. Step 6: Final answer
   x = 291,833.02