Finding the Third Proportional to 86,994 and 131,189.63

Step by Step Solution

1. Step 1: Write the proportion equation
   86,994 : 131,189.63 = 131,189.63 : x
2. Step 2: Convert to fraction form
   86,994/131,189.63 = 131,189.63/x
3. Step 3: Cross multiply
   86,994x = 131,189.63 × 131,189.63
4. Step 4: Simplify right side
   86,994x = 17,210,717,707.64
5. Step 5: Solve for x
   x = 17,210,717,707.64/86,994
6. Step 6: Final answer
   x = 197,837.99