Finding the Third Proportional to 821,808,828 and 1,759,978,692

Step by Step Solution

1. Step 1: Write the proportion equation
   821,808,828 : 1,759,978,692 = 1,759,978,692 : x
2. Step 2: Convert to fraction form
   821,808,828/1,759,978,692 = 1,759,978,692/x
3. Step 3: Cross multiply
   821,808,828x = 1,759,978,692 × 1,759,978,692
4. Step 4: Simplify right side
   821,808,828x = 3,097,524,996,294,030,848
5. Step 5: Solve for x
   x = 3,097,524,996,294,030,848/821,808,828
6. Step 6: Final answer
   x = 3,769,155,174.24