Finding the Third Proportional to 91,280 and 136,308

Step by Step Solution

1. Step 1: Write the proportion equation
   91,280 : 136,308 = 136,308 : x
2. Step 2: Convert to fraction form
   91,280/136,308 = 136,308/x
3. Step 3: Cross multiply
   91,280x = 136,308 × 136,308
4. Step 4: Simplify right side
   91,280x = 18,579,870,864
5. Step 5: Solve for x
   x = 18,579,870,864/91,280
6. Step 6: Final answer
   x = 203,548.10