Finding the Third Proportional to 899,400 and 1,915,326

Step by Step Solution

1. Step 1: Write the proportion equation
   899,400 : 1,915,326 = 1,915,326 : x
2. Step 2: Convert to fraction form
   899,400/1,915,326 = 1,915,326/x
3. Step 3: Cross multiply
   899,400x = 1,915,326 × 1,915,326
4. Step 4: Simplify right side
   899,400x = 3,668,473,686,276
5. Step 5: Solve for x
   x = 3,668,473,686,276/899,400
6. Step 6: Final answer
   x = 4,078,801.07