Finding the Third Proportional to 1,802,200 and 4,190,572

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802,200 : 4,190,572 = 4,190,572 : x
2. Step 2: Convert to fraction form
   1,802,200/4,190,572 = 4,190,572/x
3. Step 3: Cross multiply
   1,802,200x = 4,190,572 × 4,190,572
4. Step 4: Simplify right side
   1,802,200x = 17,560,893,687,184
5. Step 5: Solve for x
   x = 17,560,893,687,184/1,802,200
6. Step 6: Final answer
   x = 9,744,142.54