Finding the Third Proportional to 426,334 and 920,978

Step by Step Solution

1. Step 1: Write the proportion equation
   426,334 : 920,978 = 920,978 : x
2. Step 2: Convert to fraction form
   426,334/920,978 = 920,978/x
3. Step 3: Cross multiply
   426,334x = 920,978 × 920,978
4. Step 4: Simplify right side
   426,334x = 848,200,476,484
5. Step 5: Solve for x
   x = 848,200,476,484/426,334
6. Step 6: Final answer
   x = 1,989,521.07