Finding the Third Proportional to 90,159 and 130,590

Step by Step Solution

1. Step 1: Write the proportion equation
   90,159 : 130,590 = 130,590 : x
2. Step 2: Convert to fraction form
   90,159/130,590 = 130,590/x
3. Step 3: Cross multiply
   90,159x = 130,590 × 130,590
4. Step 4: Simplify right side
   90,159x = 17,053,748,100
5. Step 5: Solve for x
   x = 17,053,748,100/90,159
6. Step 6: Final answer
   x = 189,151.92