Finding the Third Proportional to 63,111 and 137,880

Step by Step Solution

1. Step 1: Write the proportion equation
   63,111 : 137,880 = 137,880 : x
2. Step 2: Convert to fraction form
   63,111/137,880 = 137,880/x
3. Step 3: Cross multiply
   63,111x = 137,880 × 137,880
4. Step 4: Simplify right side
   63,111x = 19,010,894,400
5. Step 5: Solve for x
   x = 19,010,894,400/63,111
6. Step 6: Final answer
   x = 301,229.49