Finding the Third Proportional to 817,089,858 and 1,222,739,811

Step by Step Solution

1. Step 1: Write the proportion equation
   817,089,858 : 1,222,739,811 = 1,222,739,811 : x
2. Step 2: Convert to fraction form
   817,089,858/1,222,739,811 = 1,222,739,811/x
3. Step 3: Cross multiply
   817,089,858x = 1,222,739,811 × 1,222,739,811
4. Step 4: Simplify right side
   817,089,858x = 1,495,092,645,404,315,648
5. Step 5: Solve for x
   x = 1,495,092,645,404,315,648/817,089,858
6. Step 6: Final answer
   x = 1,829,777,509.49