Finding the Third Proportional to 13,672.71 and 29,679.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,672.71 : 29,679.54 = 29,679.54 : x
2. Step 2: Convert to fraction form
   13,672.71/29,679.54 = 29,679.54/x
3. Step 3: Cross multiply
   13,672.71x = 29,679.54 × 29,679.54
4. Step 4: Simplify right side
   13,672.71x = 880,875,038.96
5. Step 5: Solve for x
   x = 880,875,038.96/13,672.71
6. Step 6: Final answer
   x = 64,425.81