Finding the Third Proportional to 16,884.28 and 36,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,884.28 : 36,386.72 = 36,386.72 : x
2. Step 2: Convert to fraction form
   16,884.28/36,386.72 = 36,386.72/x
3. Step 3: Cross multiply
   16,884.28x = 36,386.72 × 36,386.72
4. Step 4: Simplify right side
   16,884.28x = 1,323,993,301.39
5. Step 5: Solve for x
   x = 1,323,993,301.39/16,884.28
6. Step 6: Final answer
   x = 78,415.73