Finding the Third Proportional to 899,406 and 1,915,335

Step by Step Solution

1. Step 1: Write the proportion equation
   899,406 : 1,915,335 = 1,915,335 : x
2. Step 2: Convert to fraction form
   899,406/1,915,335 = 1,915,335/x
3. Step 3: Cross multiply
   899,406x = 1,915,335 × 1,915,335
4. Step 4: Simplify right side
   899,406x = 3,668,508,162,225
5. Step 5: Solve for x
   x = 3,668,508,162,225/899,406
6. Step 6: Final answer
   x = 4,078,812.20