Finding the Third Proportional to 67,074 and 90,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,074 : 90,769.50 = 90,769.50 : x
2. Step 2: Convert to fraction form
   67,074/90,769.50 = 90,769.50/x
3. Step 3: Cross multiply
   67,074x = 90,769.50 × 90,769.50
4. Step 4: Simplify right side
   67,074x = 8,239,102,130.25
5. Step 5: Solve for x
   x = 8,239,102,130.25/67,074
6. Step 6: Final answer
   x = 122,836.00