Finding the Third Proportional to 31,829.63 and 67,143.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,829.63 : 67,143.94 = 67,143.94 : x
2. Step 2: Convert to fraction form
   31,829.63/67,143.94 = 67,143.94/x
3. Step 3: Cross multiply
   31,829.63x = 67,143.94 × 67,143.94
4. Step 4: Simplify right side
   31,829.63x = 4,508,308,343.00
5. Step 5: Solve for x
   x = 4,508,308,343.00/31,829.63
6. Step 6: Final answer
   x = 141,638.75