Finding the Third Proportional to 890,310 and 1,886,564

Step by Step Solution

1. Step 1: Write the proportion equation
   890,310 : 1,886,564 = 1,886,564 : x
2. Step 2: Convert to fraction form
   890,310/1,886,564 = 1,886,564/x
3. Step 3: Cross multiply
   890,310x = 1,886,564 × 1,886,564
4. Step 4: Simplify right side
   890,310x = 3,559,123,726,096
5. Step 5: Solve for x
   x = 3,559,123,726,096/890,310
6. Step 6: Final answer
   x = 3,997,622.99