Finding the Third Proportional to 49,318.50 and 69,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,318.50 : 69,784.50 = 69,784.50 : x
2. Step 2: Convert to fraction form
   49,318.50/69,784.50 = 69,784.50/x
3. Step 3: Cross multiply
   49,318.50x = 69,784.50 × 69,784.50
4. Step 4: Simplify right side
   49,318.50x = 4,869,876,440.25
5. Step 5: Solve for x
   x = 4,869,876,440.25/49,318.50
6. Step 6: Final answer
   x = 98,743.40