Finding the Third Proportional to 42,279.50 and 91,100

Step by Step Solution

1. Step 1: Write the proportion equation
   42,279.50 : 91,100 = 91,100 : x
2. Step 2: Convert to fraction form
   42,279.50/91,100 = 91,100/x
3. Step 3: Cross multiply
   42,279.50x = 91,100 × 91,100
4. Step 4: Simplify right side
   42,279.50x = 8,299,210,000
5. Step 5: Solve for x
   x = 8,299,210,000/42,279.50
6. Step 6: Final answer
   x = 196,293.95