Finding the Third Proportional to 90,604 and 130,506

Step by Step Solution

1. Step 1: Write the proportion equation
   90,604 : 130,506 = 130,506 : x
2. Step 2: Convert to fraction form
   90,604/130,506 = 130,506/x
3. Step 3: Cross multiply
   90,604x = 130,506 × 130,506
4. Step 4: Simplify right side
   90,604x = 17,031,816,036
5. Step 5: Solve for x
   x = 17,031,816,036/90,604
6. Step 6: Final answer
   x = 187,980.84