Finding the Third Proportional to 199,665 and 432,904.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,665 : 432,904.50 = 432,904.50 : x
2. Step 2: Convert to fraction form
   199,665/432,904.50 = 432,904.50/x
3. Step 3: Cross multiply
   199,665x = 432,904.50 × 432,904.50
4. Step 4: Simplify right side
   199,665x = 187,406,306,120.25
5. Step 5: Solve for x
   x = 187,406,306,120.25/199,665
6. Step 6: Final answer
   x = 938,603.69