Finding the Third Proportional to 89,312 and 130,530

Step by Step Solution

1. Step 1: Write the proportion equation
   89,312 : 130,530 = 130,530 : x
2. Step 2: Convert to fraction form
   89,312/130,530 = 130,530/x
3. Step 3: Cross multiply
   89,312x = 130,530 × 130,530
4. Step 4: Simplify right side
   89,312x = 17,038,080,900
5. Step 5: Solve for x
   x = 17,038,080,900/89,312
6. Step 6: Final answer
   x = 190,770.34