Finding the Third Proportional to 92,628.56 and 199,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,628.56 : 199,300.50 = 199,300.50 : x
2. Step 2: Convert to fraction form
   92,628.56/199,300.50 = 199,300.50/x
3. Step 3: Cross multiply
   92,628.56x = 199,300.50 × 199,300.50
4. Step 4: Simplify right side
   92,628.56x = 39,720,689,300.25
5. Step 5: Solve for x
   x = 39,720,689,300.25/92,628.56
6. Step 6: Final answer
   x = 428,816.86