Finding the Third Proportional to 71,478 and 104,828.75

Step by Step Solution

1. Step 1: Write the proportion equation
   71,478 : 104,828.75 = 104,828.75 : x
2. Step 2: Convert to fraction form
   71,478/104,828.75 = 104,828.75/x
3. Step 3: Cross multiply
   71,478x = 104,828.75 × 104,828.75
4. Step 4: Simplify right side
   71,478x = 10,989,066,826.56
5. Step 5: Solve for x
   x = 10,989,066,826.56/71,478
6. Step 6: Final answer
   x = 153,740.55