Finding the Third Proportional to 28,120.50 and 61,161.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,120.50 : 61,161.75 = 61,161.75 : x
2. Step 2: Convert to fraction form
   28,120.50/61,161.75 = 61,161.75/x
3. Step 3: Cross multiply
   28,120.50x = 61,161.75 × 61,161.75
4. Step 4: Simplify right side
   28,120.50x = 3,740,759,663.06
5. Step 5: Solve for x
   x = 3,740,759,663.06/28,120.50
6. Step 6: Final answer
   x = 133,026.07