Finding the Third Proportional to 26,820 and 43,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   26,820 : 43,807.50 = 43,807.50 : x
2. Step 2: Convert to fraction form
   26,820/43,807.50 = 43,807.50/x
3. Step 3: Cross multiply
   26,820x = 43,807.50 × 43,807.50
4. Step 4: Simplify right side
   26,820x = 1,919,097,056.25
5. Step 5: Solve for x
   x = 1,919,097,056.25/26,820
6. Step 6: Final answer
   x = 71,554.70