Finding the Third Proportional to 1,973,407 and 4,315,871

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973,407 : 4,315,871 = 4,315,871 : x
2. Step 2: Convert to fraction form
   1,973,407/4,315,871 = 4,315,871/x
3. Step 3: Cross multiply
   1,973,407x = 4,315,871 × 4,315,871
4. Step 4: Simplify right side
   1,973,407x = 18,626,742,488,641
5. Step 5: Solve for x
   x = 18,626,742,488,641/1,973,407
6. Step 6: Final answer
   x = 9,438,875.25