Finding the Third Proportional to 143,522.88 and 308,984

Step by Step Solution

1. Step 1: Write the proportion equation
   143,522.88 : 308,984 = 308,984 : x
2. Step 2: Convert to fraction form
   143,522.88/308,984 = 308,984/x
3. Step 3: Cross multiply
   143,522.88x = 308,984 × 308,984
4. Step 4: Simplify right side
   143,522.88x = 95,471,112,256
5. Step 5: Solve for x
   x = 95,471,112,256/143,522.88
6. Step 6: Final answer
   x = 665,197.88