Finding the Third Proportional to 196,444.50 and 424,191

Step by Step Solution

1. Step 1: Write the proportion equation
   196,444.50 : 424,191 = 424,191 : x
2. Step 2: Convert to fraction form
   196,444.50/424,191 = 424,191/x
3. Step 3: Cross multiply
   196,444.50x = 424,191 × 424,191
4. Step 4: Simplify right side
   196,444.50x = 179,938,004,481
5. Step 5: Solve for x
   x = 179,938,004,481/196,444.50
6. Step 6: Final answer
   x = 915,973.75