Finding the Third Proportional to 28,020 and 43,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,020 : 43,383.50 = 43,383.50 : x
2. Step 2: Convert to fraction form
   28,020/43,383.50 = 43,383.50/x
3. Step 3: Cross multiply
   28,020x = 43,383.50 × 43,383.50
4. Step 4: Simplify right side
   28,020x = 1,882,128,072.25
5. Step 5: Solve for x
   x = 1,882,128,072.25/28,020
6. Step 6: Final answer
   x = 67,170.88