Finding the Third Proportional to 1,973,640 and 4,251,810

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973,640 : 4,251,810 = 4,251,810 : x
2. Step 2: Convert to fraction form
   1,973,640/4,251,810 = 4,251,810/x
3. Step 3: Cross multiply
   1,973,640x = 4,251,810 × 4,251,810
4. Step 4: Simplify right side
   1,973,640x = 18,077,888,276,100
5. Step 5: Solve for x
   x = 18,077,888,276,100/1,973,640
6. Step 6: Final answer
   x = 9,159,668.57