Finding the Third Proportional to 424,156 and 909,029.50

Step by Step Solution

1. Step 1: Write the proportion equation
   424,156 : 909,029.50 = 909,029.50 : x
2. Step 2: Convert to fraction form
   424,156/909,029.50 = 909,029.50/x
3. Step 3: Cross multiply
   424,156x = 909,029.50 × 909,029.50
4. Step 4: Simplify right side
   424,156x = 826,334,631,870.25
5. Step 5: Solve for x
   x = 826,334,631,870.25/424,156
6. Step 6: Final answer
   x = 1,948,185.65