Finding the Third Proportional to 42,784 and 103,679

Step by Step Solution

1. Step 1: Write the proportion equation
   42,784 : 103,679 = 103,679 : x
2. Step 2: Convert to fraction form
   42,784/103,679 = 103,679/x
3. Step 3: Cross multiply
   42,784x = 103,679 × 103,679
4. Step 4: Simplify right side
   42,784x = 10,749,335,041
5. Step 5: Solve for x
   x = 10,749,335,041/42,784
6. Step 6: Final answer
   x = 251,246.61