Finding the Third Proportional to 45,912 and 72,828

Step by Step Solution

1. Step 1: Write the proportion equation
   45,912 : 72,828 = 72,828 : x
2. Step 2: Convert to fraction form
   45,912/72,828 = 72,828/x
3. Step 3: Cross multiply
   45,912x = 72,828 × 72,828
4. Step 4: Simplify right side
   45,912x = 5,303,917,584
5. Step 5: Solve for x
   x = 5,303,917,584/45,912
6. Step 6: Final answer
   x = 115,523.56