Finding the Third Proportional to 199,754 and 427,938.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,754 : 427,938.50 = 427,938.50 : x
2. Step 2: Convert to fraction form
   199,754/427,938.50 = 427,938.50/x
3. Step 3: Cross multiply
   199,754x = 427,938.50 × 427,938.50
4. Step 4: Simplify right side
   199,754x = 183,131,359,782.25
5. Step 5: Solve for x
   x = 183,131,359,782.25/199,754
6. Step 6: Final answer
   x = 916,784.44