Finding the Third Proportional to 28,986 and 61,086

Step by Step Solution

1. Step 1: Write the proportion equation
   28,986 : 61,086 = 61,086 : x
2. Step 2: Convert to fraction form
   28,986/61,086 = 61,086/x
3. Step 3: Cross multiply
   28,986x = 61,086 × 61,086
4. Step 4: Simplify right side
   28,986x = 3,731,499,396
5. Step 5: Solve for x
   x = 3,731,499,396/28,986
6. Step 6: Final answer
   x = 128,734.54