Finding the Third Proportional to 103,671 and 140,672

Step by Step Solution

1. Step 1: Write the proportion equation
   103,671 : 140,672 = 140,672 : x
2. Step 2: Convert to fraction form
   103,671/140,672 = 140,672/x
3. Step 3: Cross multiply
   103,671x = 140,672 × 140,672
4. Step 4: Simplify right side
   103,671x = 19,788,611,584
5. Step 5: Solve for x
   x = 19,788,611,584/103,671
6. Step 6: Final answer
   x = 190,878.95