Finding the Third Proportional to 67,748 and 100,640

Step by Step Solution

1. Step 1: Write the proportion equation
   67,748 : 100,640 = 100,640 : x
2. Step 2: Convert to fraction form
   67,748/100,640 = 100,640/x
3. Step 3: Cross multiply
   67,748x = 100,640 × 100,640
4. Step 4: Simplify right side
   67,748x = 10,128,409,600
5. Step 5: Solve for x
   x = 10,128,409,600/67,748
6. Step 6: Final answer
   x = 149,501.23