Finding the Third Proportional to 66,901.50 and 91,739.25

Step by Step Solution

1. Step 1: Write the proportion equation
   66,901.50 : 91,739.25 = 91,739.25 : x
2. Step 2: Convert to fraction form
   66,901.50/91,739.25 = 91,739.25/x
3. Step 3: Cross multiply
   66,901.50x = 91,739.25 × 91,739.25
4. Step 4: Simplify right side
   66,901.50x = 8,416,089,990.56
5. Step 5: Solve for x
   x = 8,416,089,990.56/66,901.50
6. Step 6: Final answer
   x = 125,798.23