Finding the Third Proportional to 31,748.63 and 68,961.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,748.63 : 68,961.38 = 68,961.38 : x
2. Step 2: Convert to fraction form
   31,748.63/68,961.38 = 68,961.38/x
3. Step 3: Cross multiply
   31,748.63x = 68,961.38 × 68,961.38
4. Step 4: Simplify right side
   31,748.63x = 4,755,671,241.89
5. Step 5: Solve for x
   x = 4,755,671,241.89/31,748.63
6. Step 6: Final answer
   x = 149,791.41