Finding the Third Proportional to 49,378 and 70,560

Step by Step Solution

1. Step 1: Write the proportion equation
   49,378 : 70,560 = 70,560 : x
2. Step 2: Convert to fraction form
   49,378/70,560 = 70,560/x
3. Step 3: Cross multiply
   49,378x = 70,560 × 70,560
4. Step 4: Simplify right side
   49,378x = 4,978,713,600
5. Step 5: Solve for x
   x = 4,978,713,600/49,378
6. Step 6: Final answer
   x = 100,828.58