Finding the Third Proportional to 1,971,864 and 4,242,618

Step by Step Solution

1. Step 1: Write the proportion equation
   1,971,864 : 4,242,618 = 4,242,618 : x
2. Step 2: Convert to fraction form
   1,971,864/4,242,618 = 4,242,618/x
3. Step 3: Cross multiply
   1,971,864x = 4,242,618 × 4,242,618
4. Step 4: Simplify right side
   1,971,864x = 17,999,807,493,924
5. Step 5: Solve for x
   x = 17,999,807,493,924/1,971,864
6. Step 6: Final answer
   x = 9,128,320.97