Finding the Third Proportional to 139,087.13 and 303,655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,087.13 : 303,655.50 = 303,655.50 : x
2. Step 2: Convert to fraction form
   139,087.13/303,655.50 = 303,655.50/x
3. Step 3: Cross multiply
   139,087.13x = 303,655.50 × 303,655.50
4. Step 4: Simplify right side
   139,087.13x = 92,206,662,680.25
5. Step 5: Solve for x
   x = 92,206,662,680.25/139,087.13
6. Step 6: Final answer
   x = 662,941.75