Finding the Third Proportional to 1,916,503 and 4,221,882

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916,503 : 4,221,882 = 4,221,882 : x
2. Step 2: Convert to fraction form
   1,916,503/4,221,882 = 4,221,882/x
3. Step 3: Cross multiply
   1,916,503x = 4,221,882 × 4,221,882
4. Step 4: Simplify right side
   1,916,503x = 17,824,287,621,924
5. Step 5: Solve for x
   x = 17,824,287,621,924/1,916,503
6. Step 6: Final answer
   x = 9,300,422.50