Finding the Third Proportional to 1,915,520 and 4,190,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915,520 : 4,190,028 = 4,190,028 : x
2. Step 2: Convert to fraction form
   1,915,520/4,190,028 = 4,190,028/x
3. Step 3: Cross multiply
   1,915,520x = 4,190,028 × 4,190,028
4. Step 4: Simplify right side
   1,915,520x = 17,556,334,640,784
5. Step 5: Solve for x
   x = 17,556,334,640,784/1,915,520
6. Step 6: Final answer
   x = 9,165,310.02