Finding the Third Proportional to 890,258 and 1,886,464

Step by Step Solution

1. Step 1: Write the proportion equation
   890,258 : 1,886,464 = 1,886,464 : x
2. Step 2: Convert to fraction form
   890,258/1,886,464 = 1,886,464/x
3. Step 3: Cross multiply
   890,258x = 1,886,464 × 1,886,464
4. Step 4: Simplify right side
   890,258x = 3,558,746,423,296
5. Step 5: Solve for x
   x = 3,558,746,423,296/890,258
6. Step 6: Final answer
   x = 3,997,432.68