Finding the Third Proportional to 49,315.50 and 69,780.38

Step by Step Solution

1. Step 1: Write the proportion equation
   49,315.50 : 69,780.38 = 69,780.38 : x
2. Step 2: Convert to fraction form
   49,315.50/69,780.38 = 69,780.38/x
3. Step 3: Cross multiply
   49,315.50x = 69,780.38 × 69,780.38
4. Step 4: Simplify right side
   49,315.50x = 4,869,300,735.14
5. Step 5: Solve for x
   x = 4,869,300,735.14/49,315.50
6. Step 6: Final answer
   x = 98,737.73