Finding the Third Proportional to 199,612.50 and 433,131

Step by Step Solution

1. Step 1: Write the proportion equation
   199,612.50 : 433,131 = 433,131 : x
2. Step 2: Convert to fraction form
   199,612.50/433,131 = 433,131/x
3. Step 3: Cross multiply
   199,612.50x = 433,131 × 433,131
4. Step 4: Simplify right side
   199,612.50x = 187,602,463,161
5. Step 5: Solve for x
   x = 187,602,463,161/199,612.50
6. Step 6: Final answer
   x = 939,833.24