Finding the Third Proportional to 64,916 and 100,240

Step by Step Solution

1. Step 1: Write the proportion equation
   64,916 : 100,240 = 100,240 : x
2. Step 2: Convert to fraction form
   64,916/100,240 = 100,240/x
3. Step 3: Cross multiply
   64,916x = 100,240 × 100,240
4. Step 4: Simplify right side
   64,916x = 10,048,057,600
5. Step 5: Solve for x
   x = 10,048,057,600/64,916
6. Step 6: Final answer
   x = 154,785.53