Finding the Third Proportional to 90,034 and 139,759

Step by Step Solution

1. Step 1: Write the proportion equation
   90,034 : 139,759 = 139,759 : x
2. Step 2: Convert to fraction form
   90,034/139,759 = 139,759/x
3. Step 3: Cross multiply
   90,034x = 139,759 × 139,759
4. Step 4: Simplify right side
   90,034x = 19,532,578,081
5. Step 5: Solve for x
   x = 19,532,578,081/90,034
6. Step 6: Final answer
   x = 216,946.69