Finding the Third Proportional to 28,840.50 and 69,801.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,840.50 : 69,801.75 = 69,801.75 : x
2. Step 2: Convert to fraction form
   28,840.50/69,801.75 = 69,801.75/x
3. Step 3: Cross multiply
   28,840.50x = 69,801.75 × 69,801.75
4. Step 4: Simplify right side
   28,840.50x = 4,872,284,303.06
5. Step 5: Solve for x
   x = 4,872,284,303.06/28,840.50
6. Step 6: Final answer
   x = 168,938.97