Finding the Third Proportional to 890,256 and 1,886,460

Step by Step Solution

1. Step 1: Write the proportion equation
   890,256 : 1,886,460 = 1,886,460 : x
2. Step 2: Convert to fraction form
   890,256/1,886,460 = 1,886,460/x
3. Step 3: Cross multiply
   890,256x = 1,886,460 × 1,886,460
4. Step 4: Simplify right side
   890,256x = 3,558,731,331,600
5. Step 5: Solve for x
   x = 3,558,731,331,600/890,256
6. Step 6: Final answer
   x = 3,997,424.71