Finding the Third Proportional to 28,939.78 and 62,618.06

Step by Step Solution

1. Step 1: Write the proportion equation
   28,939.78 : 62,618.06 = 62,618.06 : x
2. Step 2: Convert to fraction form
   28,939.78/62,618.06 = 62,618.06/x
3. Step 3: Cross multiply
   28,939.78x = 62,618.06 × 62,618.06
4. Step 4: Simplify right side
   28,939.78x = 3,921,021,751.25
5. Step 5: Solve for x
   x = 3,921,021,751.25/28,939.78
6. Step 6: Final answer
   x = 135,488.99