Finding the Third Proportional to 890,312 and 1,886,568

Step by Step Solution

1. Step 1: Write the proportion equation
   890,312 : 1,886,568 = 1,886,568 : x
2. Step 2: Convert to fraction form
   890,312/1,886,568 = 1,886,568/x
3. Step 3: Cross multiply
   890,312x = 1,886,568 × 1,886,568
4. Step 4: Simplify right side
   890,312x = 3,559,138,818,624
5. Step 5: Solve for x
   x = 3,559,138,818,624/890,312
6. Step 6: Final answer
   x = 3,997,630.96