Finding the Third Proportional to 282,898,658 and 618,389,158

Step by Step Solution

1. Step 1: Write the proportion equation
   282,898,658 : 618,389,158 = 618,389,158 : x
2. Step 2: Convert to fraction form
   282,898,658/618,389,158 = 618,389,158/x
3. Step 3: Cross multiply
   282,898,658x = 618,389,158 × 618,389,158
4. Step 4: Simplify right side
   282,898,658x = 382,405,150,731,948,992
5. Step 5: Solve for x
   x = 382,405,150,731,948,992/282,898,658
6. Step 6: Final answer
   x = 1,351,739,005.89