Finding the Third Proportional to 1,216,321 and 1,845,818

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216,321 : 1,845,818 = 1,845,818 : x
2. Step 2: Convert to fraction form
   1,216,321/1,845,818 = 1,845,818/x
3. Step 3: Cross multiply
   1,216,321x = 1,845,818 × 1,845,818
4. Step 4: Simplify right side
   1,216,321x = 3,407,044,089,124
5. Step 5: Solve for x
   x = 3,407,044,089,124/1,216,321
6. Step 6: Final answer
   x = 2,801,106.03