Finding the Third Proportional to 49,449.38 and 78,618.94

Step by Step Solution

1. Step 1: Write the proportion equation
   49,449.38 : 78,618.94 = 78,618.94 : x
2. Step 2: Convert to fraction form
   49,449.38/78,618.94 = 78,618.94/x
3. Step 3: Cross multiply
   49,449.38x = 78,618.94 × 78,618.94
4. Step 4: Simplify right side
   49,449.38x = 6,180,937,333.63
5. Step 5: Solve for x
   x = 6,180,937,333.63/49,449.38
6. Step 6: Final answer
   x = 124,995.26