Finding the Third Proportional to 13,679.51 and 29,469.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,679.51 : 29,469.76 = 29,469.76 : x
2. Step 2: Convert to fraction form
   13,679.51/29,469.76 = 29,469.76/x
3. Step 3: Cross multiply
   13,679.51x = 29,469.76 × 29,469.76
4. Step 4: Simplify right side
   13,679.51x = 868,466,855.76
5. Step 5: Solve for x
   x = 868,466,855.76/13,679.51
6. Step 6: Final answer
   x = 63,486.70