Finding the Third Proportional to 90,602 and 130,503

Step by Step Solution

1. Step 1: Write the proportion equation
   90,602 : 130,503 = 130,503 : x
2. Step 2: Convert to fraction form
   90,602/130,503 = 130,503/x
3. Step 3: Cross multiply
   90,602x = 130,503 × 130,503
4. Step 4: Simplify right side
   90,602x = 17,031,033,009
5. Step 5: Solve for x
   x = 17,031,033,009/90,602
6. Step 6: Final answer
   x = 187,976.35