Finding the Third Proportional to 66,530 and 100,485.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,530 : 100,485.50 = 100,485.50 : x
2. Step 2: Convert to fraction form
   66,530/100,485.50 = 100,485.50/x
3. Step 3: Cross multiply
   66,530x = 100,485.50 × 100,485.50
4. Step 4: Simplify right side
   66,530x = 10,097,335,710.25
5. Step 5: Solve for x
   x = 10,097,335,710.25/66,530
6. Step 6: Final answer
   x = 151,771.17