Finding the Third Proportional to 203,503.50 and 299,158

Step by Step Solution

1. Step 1: Write the proportion equation
   203,503.50 : 299,158 = 299,158 : x
2. Step 2: Convert to fraction form
   203,503.50/299,158 = 299,158/x
3. Step 3: Cross multiply
   203,503.50x = 299,158 × 299,158
4. Step 4: Simplify right side
   203,503.50x = 89,495,508,964
5. Step 5: Solve for x
   x = 89,495,508,964/203,503.50
6. Step 6: Final answer
   x = 439,773.81