Finding the Third Proportional to 66,954 and 91,808.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,954 : 91,808.50 = 91,808.50 : x
2. Step 2: Convert to fraction form
   66,954/91,808.50 = 91,808.50/x
3. Step 3: Cross multiply
   66,954x = 91,808.50 × 91,808.50
4. Step 4: Simplify right side
   66,954x = 8,428,800,672.25
5. Step 5: Solve for x
   x = 8,428,800,672.25/66,954
6. Step 6: Final answer
   x = 125,889.43