Finding the Third Proportional to 90,588 and 130,479

Step by Step Solution

1. Step 1: Write the proportion equation
   90,588 : 130,479 = 130,479 : x
2. Step 2: Convert to fraction form
   90,588/130,479 = 130,479/x
3. Step 3: Cross multiply
   90,588x = 130,479 × 130,479
4. Step 4: Simplify right side
   90,588x = 17,024,769,441
5. Step 5: Solve for x
   x = 17,024,769,441/90,588
6. Step 6: Final answer
   x = 187,936.25