Finding the Third Proportional to 199,593 and 309,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,593 : 309,901.50 = 309,901.50 : x
2. Step 2: Convert to fraction form
   199,593/309,901.50 = 309,901.50/x
3. Step 3: Cross multiply
   199,593x = 309,901.50 × 309,901.50
4. Step 4: Simplify right side
   199,593x = 96,038,939,702.25
5. Step 5: Solve for x
   x = 96,038,939,702.25/199,593
6. Step 6: Final answer
   x = 481,173.89