Finding the Third Proportional to 426,022.50 and 918,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   426,022.50 : 918,475.50 = 918,475.50 : x
2. Step 2: Convert to fraction form
   426,022.50/918,475.50 = 918,475.50/x
3. Step 3: Cross multiply
   426,022.50x = 918,475.50 × 918,475.50
4. Step 4: Simplify right side
   426,022.50x = 843,597,244,100.25
5. Step 5: Solve for x
   x = 843,597,244,100.25/426,022.50
6. Step 6: Final answer
   x = 1,980,170.63