Finding the Third Proportional to 98,634 and 139,564.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,634 : 139,564.50 = 139,564.50 : x
2. Step 2: Convert to fraction form
   98,634/139,564.50 = 139,564.50/x
3. Step 3: Cross multiply
   98,634x = 139,564.50 × 139,564.50
4. Step 4: Simplify right side
   98,634x = 19,478,249,660.25
5. Step 5: Solve for x
   x = 19,478,249,660.25/98,634
6. Step 6: Final answer
   x = 197,480.07