Finding the Third Proportional to 199,480.50 and 432,870

Step by Step Solution

1. Step 1: Write the proportion equation
   199,480.50 : 432,870 = 432,870 : x
2. Step 2: Convert to fraction form
   199,480.50/432,870 = 432,870/x
3. Step 3: Cross multiply
   199,480.50x = 432,870 × 432,870
4. Step 4: Simplify right side
   199,480.50x = 187,376,436,900
5. Step 5: Solve for x
   x = 187,376,436,900/199,480.50
6. Step 6: Final answer
   x = 939,322.07