Finding the Third Proportional to 90,826 and 117,921

Step by Step Solution

1. Step 1: Write the proportion equation
   90,826 : 117,921 = 117,921 : x
2. Step 2: Convert to fraction form
   90,826/117,921 = 117,921/x
3. Step 3: Cross multiply
   90,826x = 117,921 × 117,921
4. Step 4: Simplify right side
   90,826x = 13,905,362,241
5. Step 5: Solve for x
   x = 13,905,362,241/90,826
6. Step 6: Final answer
   x = 153,098.92