Finding the Third Proportional to 92,208.50 and 139,159.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,208.50 : 139,159.50 = 139,159.50 : x
2. Step 2: Convert to fraction form
   92,208.50/139,159.50 = 139,159.50/x
3. Step 3: Cross multiply
   92,208.50x = 139,159.50 × 139,159.50
4. Step 4: Simplify right side
   92,208.50x = 19,365,366,440.25
5. Step 5: Solve for x
   x = 19,365,366,440.25/92,208.50
6. Step 6: Final answer
   x = 210,017.15