Finding the Third Proportional to 426,361.50 and 917,238

Step by Step Solution

1. Step 1: Write the proportion equation
   426,361.50 : 917,238 = 917,238 : x
2. Step 2: Convert to fraction form
   426,361.50/917,238 = 917,238/x
3. Step 3: Cross multiply
   426,361.50x = 917,238 × 917,238
4. Step 4: Simplify right side
   426,361.50x = 841,325,548,644
5. Step 5: Solve for x
   x = 841,325,548,644/426,361.50
6. Step 6: Final answer
   x = 1,973,268.10