Finding the Third Proportional to 747,836 and 1,621,852

Step by Step Solution

1. Step 1: Write the proportion equation
   747,836 : 1,621,852 = 1,621,852 : x
2. Step 2: Convert to fraction form
   747,836/1,621,852 = 1,621,852/x
3. Step 3: Cross multiply
   747,836x = 1,621,852 × 1,621,852
4. Step 4: Simplify right side
   747,836x = 2,630,403,909,904
5. Step 5: Solve for x
   x = 2,630,403,909,904/747,836
6. Step 6: Final answer
   x = 3,517,353.95