Finding the Third Proportional to 66,878 and 103,884

Step by Step Solution

1. Step 1: Write the proportion equation
   66,878 : 103,884 = 103,884 : x
2. Step 2: Convert to fraction form
   66,878/103,884 = 103,884/x
3. Step 3: Cross multiply
   66,878x = 103,884 × 103,884
4. Step 4: Simplify right side
   66,878x = 10,791,885,456
5. Step 5: Solve for x
   x = 10,791,885,456/66,878
6. Step 6: Final answer
   x = 161,366.75