Finding the Third Proportional to 763,955 and 1,618,978

Step by Step Solution

1. Step 1: Write the proportion equation
   763,955 : 1,618,978 = 1,618,978 : x
2. Step 2: Convert to fraction form
   763,955/1,618,978 = 1,618,978/x
3. Step 3: Cross multiply
   763,955x = 1,618,978 × 1,618,978
4. Step 4: Simplify right side
   763,955x = 2,621,089,764,484
5. Step 5: Solve for x
   x = 2,621,089,764,484/763,955
6. Step 6: Final answer
   x = 3,430,947.85