Finding the Third Proportional to 136,128,064 and 298,705,760

Step by Step Solution

1. Step 1: Write the proportion equation
   136,128,064 : 298,705,760 = 298,705,760 : x
2. Step 2: Convert to fraction form
   136,128,064/298,705,760 = 298,705,760/x
3. Step 3: Cross multiply
   136,128,064x = 298,705,760 × 298,705,760
4. Step 4: Simplify right side
   136,128,064x = 89,225,131,057,177,600
5. Step 5: Solve for x
   x = 89,225,131,057,177,600/136,128,064
6. Step 6: Final answer
   x = 655,449,937.62