Finding the Third Proportional to 899,420 and 1,915,364

Step by Step Solution

1. Step 1: Write the proportion equation
   899,420 : 1,915,364 = 1,915,364 : x
2. Step 2: Convert to fraction form
   899,420/1,915,364 = 1,915,364/x
3. Step 3: Cross multiply
   899,420x = 1,915,364 × 1,915,364
4. Step 4: Simplify right side
   899,420x = 3,668,619,252,496
5. Step 5: Solve for x
   x = 3,668,619,252,496/899,420
6. Step 6: Final answer
   x = 4,078,872.22