Finding the Third Proportional to 199,820 and 436,250

Step by Step Solution

1. Step 1: Write the proportion equation
   199,820 : 436,250 = 436,250 : x
2. Step 2: Convert to fraction form
   199,820/436,250 = 436,250/x
3. Step 3: Cross multiply
   199,820x = 436,250 × 436,250
4. Step 4: Simplify right side
   199,820x = 190,314,062,500
5. Step 5: Solve for x
   x = 190,314,062,500/199,820
6. Step 6: Final answer
   x = 952,427.50