Finding the Third Proportional to 90,740 and 130,902

Step by Step Solution

1. Step 1: Write the proportion equation
   90,740 : 130,902 = 130,902 : x
2. Step 2: Convert to fraction form
   90,740/130,902 = 130,902/x
3. Step 3: Cross multiply
   90,740x = 130,902 × 130,902
4. Step 4: Simplify right side
   90,740x = 17,135,333,604
5. Step 5: Solve for x
   x = 17,135,333,604/90,740
6. Step 6: Final answer
   x = 188,839.91