Finding the Third Proportional to 419,557.50 and 905,454

Step by Step Solution

1. Step 1: Write the proportion equation
   419,557.50 : 905,454 = 905,454 : x
2. Step 2: Convert to fraction form
   419,557.50/905,454 = 905,454/x
3. Step 3: Cross multiply
   419,557.50x = 905,454 × 905,454
4. Step 4: Simplify right side
   419,557.50x = 819,846,946,116
5. Step 5: Solve for x
   x = 819,846,946,116/419,557.50
6. Step 6: Final answer
   x = 1,954,075.30