Finding the Third Proportional to 89,186 and 130,820

Step by Step Solution

1. Step 1: Write the proportion equation
   89,186 : 130,820 = 130,820 : x
2. Step 2: Convert to fraction form
   89,186/130,820 = 130,820/x
3. Step 3: Cross multiply
   89,186x = 130,820 × 130,820
4. Step 4: Simplify right side
   89,186x = 17,113,872,400
5. Step 5: Solve for x
   x = 17,113,872,400/89,186
6. Step 6: Final answer
   x = 191,889.67