Finding the Third Proportional to 42,690 and 91,956

Step by Step Solution

1. Step 1: Write the proportion equation
   42,690 : 91,956 = 91,956 : x
2. Step 2: Convert to fraction form
   42,690/91,956 = 91,956/x
3. Step 3: Cross multiply
   42,690x = 91,956 × 91,956
4. Step 4: Simplify right side
   42,690x = 8,455,905,936
5. Step 5: Solve for x
   x = 8,455,905,936/42,690
6. Step 6: Final answer
   x = 198,076.97