Finding the Third Proportional to 489,769,978 and 1,065,630,118

Step by Step Solution

1. Step 1: Write the proportion equation
   489,769,978 : 1,065,630,118 = 1,065,630,118 : x
2. Step 2: Convert to fraction form
   489,769,978/1,065,630,118 = 1,065,630,118/x
3. Step 3: Cross multiply
   489,769,978x = 1,065,630,118 × 1,065,630,118
4. Step 4: Simplify right side
   489,769,978x = 1,135,567,548,388,693,888
5. Step 5: Solve for x
   x = 1,135,567,548,388,693,888/489,769,978
6. Step 6: Final answer
   x = 2,318,573,206.60