Finding the Third Proportional to 31,553.63 and 67,002.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,553.63 : 67,002.75 = 67,002.75 : x
2. Step 2: Convert to fraction form
   31,553.63/67,002.75 = 67,002.75/x
3. Step 3: Cross multiply
   31,553.63x = 67,002.75 × 67,002.75
4. Step 4: Simplify right side
   31,553.63x = 4,489,368,507.56
5. Step 5: Solve for x
   x = 4,489,368,507.56/31,553.63
6. Step 6: Final answer
   x = 142,277.42