Finding the Third Proportional to 13,436.63 and 31,376.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,436.63 : 31,376.72 = 31,376.72 : x
2. Step 2: Convert to fraction form
   13,436.63/31,376.72 = 31,376.72/x
3. Step 3: Cross multiply
   13,436.63x = 31,376.72 × 31,376.72
4. Step 4: Simplify right side
   13,436.63x = 984,498,479.52
5. Step 5: Solve for x
   x = 984,498,479.52/13,436.63
6. Step 6: Final answer
   x = 73,269.77