Finding the Third Proportional to 426,019.50 and 918,468

Step by Step Solution

1. Step 1: Write the proportion equation
   426,019.50 : 918,468 = 918,468 : x
2. Step 2: Convert to fraction form
   426,019.50/918,468 = 918,468/x
3. Step 3: Cross multiply
   426,019.50x = 918,468 × 918,468
4. Step 4: Simplify right side
   426,019.50x = 843,583,467,024
5. Step 5: Solve for x
   x = 843,583,467,024/426,019.50
6. Step 6: Final answer
   x = 1,980,152.24