Finding the Third Proportional to 529,379,008 and 800,877,036

Step by Step Solution

1. Step 1: Write the proportion equation
   529,379,008 : 800,877,036 = 800,877,036 : x
2. Step 2: Convert to fraction form
   529,379,008/800,877,036 = 800,877,036/x
3. Step 3: Cross multiply
   529,379,008x = 800,877,036 × 800,877,036
4. Step 4: Simplify right side
   529,379,008x = 641,404,026,792,145,280
5. Step 5: Solve for x
   x = 641,404,026,792,145,280/529,379,008
6. Step 6: Final answer
   x = 1,211,615,906.75