Finding the Third Proportional to 428,184 and 922,140

Step by Step Solution

1. Step 1: Write the proportion equation
   428,184 : 922,140 = 922,140 : x
2. Step 2: Convert to fraction form
   428,184/922,140 = 922,140/x
3. Step 3: Cross multiply
   428,184x = 922,140 × 922,140
4. Step 4: Simplify right side
   428,184x = 850,342,179,600
5. Step 5: Solve for x
   x = 850,342,179,600/428,184
6. Step 6: Final answer
   x = 1,985,927.03