Finding the Third Proportional to 90,070.50 and 130,458

Step by Step Solution

1. Step 1: Write the proportion equation
   90,070.50 : 130,458 = 130,458 : x
2. Step 2: Convert to fraction form
   90,070.50/130,458 = 130,458/x
3. Step 3: Cross multiply
   90,070.50x = 130,458 × 130,458
4. Step 4: Simplify right side
   90,070.50x = 17,019,289,764
5. Step 5: Solve for x
   x = 17,019,289,764/90,070.50
6. Step 6: Final answer
   x = 188,955.20