Finding the Third Proportional to 61,828 and 90,150

Step by Step Solution

1. Step 1: Write the proportion equation
   61,828 : 90,150 = 90,150 : x
2. Step 2: Convert to fraction form
   61,828/90,150 = 90,150/x
3. Step 3: Cross multiply
   61,828x = 90,150 × 90,150
4. Step 4: Simplify right side
   61,828x = 8,127,022,500
5. Step 5: Solve for x
   x = 8,127,022,500/61,828
6. Step 6: Final answer
   x = 131,445.66