Finding the Third Proportional to 136,263,128 and 298,907,091

Step by Step Solution

1. Step 1: Write the proportion equation
   136,263,128 : 298,907,091 = 298,907,091 : x
2. Step 2: Convert to fraction form
   136,263,128/298,907,091 = 298,907,091/x
3. Step 3: Cross multiply
   136,263,128x = 298,907,091 × 298,907,091
4. Step 4: Simplify right side
   136,263,128x = 89,345,449,050,082,288
5. Step 5: Solve for x
   x = 89,345,449,050,082,288/136,263,128
6. Step 6: Final answer
   x = 655,683,238.46