Finding the Third Proportional to 89,994 and 137,715

Step by Step Solution

1. Step 1: Write the proportion equation
   89,994 : 137,715 = 137,715 : x
2. Step 2: Convert to fraction form
   89,994/137,715 = 137,715/x
3. Step 3: Cross multiply
   89,994x = 137,715 × 137,715
4. Step 4: Simplify right side
   89,994x = 18,965,421,225
5. Step 5: Solve for x
   x = 18,965,421,225/89,994
6. Step 6: Final answer
   x = 210,740.95