Finding the Third Proportional to 1,986,244 and 4,210,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986,244 : 4,210,820 = 4,210,820 : x
2. Step 2: Convert to fraction form
   1,986,244/4,210,820 = 4,210,820/x
3. Step 3: Cross multiply
   1,986,244x = 4,210,820 × 4,210,820
4. Step 4: Simplify right side
   1,986,244x = 17,731,005,072,400
5. Step 5: Solve for x
   x = 17,731,005,072,400/1,986,244
6. Step 6: Final answer
   x = 8,926,901.77