Finding the Third Proportional to 199,599 and 299,374.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,599 : 299,374.50 = 299,374.50 : x
2. Step 2: Convert to fraction form
   199,599/299,374.50 = 299,374.50/x
3. Step 3: Cross multiply
   199,599x = 299,374.50 × 299,374.50
4. Step 4: Simplify right side
   199,599x = 89,625,091,250.25
5. Step 5: Solve for x
   x = 89,625,091,250.25/199,599
6. Step 6: Final answer
   x = 449,025.75