Finding the Third Proportional to 28,210.78 and 61,015.78

Step by Step Solution

1. Step 1: Write the proportion equation
   28,210.78 : 61,015.78 = 61,015.78 : x
2. Step 2: Convert to fraction form
   28,210.78/61,015.78 = 61,015.78/x
3. Step 3: Cross multiply
   28,210.78x = 61,015.78 × 61,015.78
4. Step 4: Simplify right side
   28,210.78x = 3,722,925,561.55
5. Step 5: Solve for x
   x = 3,722,925,561.55/28,210.78
6. Step 6: Final answer
   x = 131,968.18