Finding the Third Proportional to 199,638 and 432,508.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,638 : 432,508.50 = 432,508.50 : x
2. Step 2: Convert to fraction form
   199,638/432,508.50 = 432,508.50/x
3. Step 3: Cross multiply
   199,638x = 432,508.50 × 432,508.50
4. Step 4: Simplify right side
   199,638x = 187,063,602,572.25
5. Step 5: Solve for x
   x = 187,063,602,572.25/199,638
6. Step 6: Final answer
   x = 937,014.01