Finding the Third Proportional to 15,478 and 33,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,478 : 33,912.50 = 33,912.50 : x
2. Step 2: Convert to fraction form
   15,478/33,912.50 = 33,912.50/x
3. Step 3: Cross multiply
   15,478x = 33,912.50 × 33,912.50
4. Step 4: Simplify right side
   15,478x = 1,150,057,656.25
5. Step 5: Solve for x
   x = 1,150,057,656.25/15,478
6. Step 6: Final answer
   x = 74,302.73