Finding the Third Proportional to 50,112 and 70,490

Step by Step Solution

1. Step 1: Write the proportion equation
   50,112 : 70,490 = 70,490 : x
2. Step 2: Convert to fraction form
   50,112/70,490 = 70,490/x
3. Step 3: Cross multiply
   50,112x = 70,490 × 70,490
4. Step 4: Simplify right side
   50,112x = 4,968,840,100
5. Step 5: Solve for x
   x = 4,968,840,100/50,112
6. Step 6: Final answer
   x = 99,154.70