Finding the Third Proportional to 1,215,984 and 1,817,170

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,984 : 1,817,170 = 1,817,170 : x
2. Step 2: Convert to fraction form
   1,215,984/1,817,170 = 1,817,170/x
3. Step 3: Cross multiply
   1,215,984x = 1,817,170 × 1,817,170
4. Step 4: Simplify right side
   1,215,984x = 3,302,106,808,900
5. Step 5: Solve for x
   x = 3,302,106,808,900/1,215,984
6. Step 6: Final answer
   x = 2,715,584.09