Finding the Third Proportional to 49,446.70 and 78,817.43

Step by Step Solution

1. Step 1: Write the proportion equation
   49,446.70 : 78,817.43 = 78,817.43 : x
2. Step 2: Convert to fraction form
   49,446.70/78,817.43 = 78,817.43/x
3. Step 3: Cross multiply
   49,446.70x = 78,817.43 × 78,817.43
4. Step 4: Simplify right side
   49,446.70x = 6,212,187,222.54
5. Step 5: Solve for x
   x = 6,212,187,222.54/49,446.70
6. Step 6: Final answer
   x = 125,634.00