Finding the Third Proportional to 16,415.31 and 35,963.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,415.31 : 35,963.76 = 35,963.76 : x
2. Step 2: Convert to fraction form
   16,415.31/35,963.76 = 35,963.76/x
3. Step 3: Cross multiply
   16,415.31x = 35,963.76 × 35,963.76
4. Step 4: Simplify right side
   16,415.31x = 1,293,392,227.20
5. Step 5: Solve for x
   x = 1,293,392,227.20/16,415.31
6. Step 6: Final answer
   x = 78,791.80