Finding the Third Proportional to 13,312.79 and 20,071.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,312.79 : 20,071.71 = 20,071.71 : x
2. Step 2: Convert to fraction form
   13,312.79/20,071.71 = 20,071.71/x
3. Step 3: Cross multiply
   13,312.79x = 20,071.71 × 20,071.71
4. Step 4: Simplify right side
   13,312.79x = 402,873,344.74
5. Step 5: Solve for x
   x = 402,873,344.74/13,312.79
6. Step 6: Final answer
   x = 30,262.12