Finding the Third Proportional to 49,865.63 and 72,869.63

Step by Step Solution

1. Step 1: Write the proportion equation
   49,865.63 : 72,869.63 = 72,869.63 : x
2. Step 2: Convert to fraction form
   49,865.63/72,869.63 = 72,869.63/x
3. Step 3: Cross multiply
   49,865.63x = 72,869.63 × 72,869.63
4. Step 4: Simplify right side
   49,865.63x = 5,309,982,247.64
5. Step 5: Solve for x
   x = 5,309,982,247.64/49,865.63
6. Step 6: Final answer
   x = 106,485.83