Finding the Third Proportional to 428,738 and 931,284

Step by Step Solution

1. Step 1: Write the proportion equation
   428,738 : 931,284 = 931,284 : x
2. Step 2: Convert to fraction form
   428,738/931,284 = 931,284/x
3. Step 3: Cross multiply
   428,738x = 931,284 × 931,284
4. Step 4: Simplify right side
   428,738x = 867,289,888,656
5. Step 5: Solve for x
   x = 867,289,888,656/428,738
6. Step 6: Final answer
   x = 2,022,890.18