Finding the Third Proportional to 144,063,514 and 315,449,300

Step by Step Solution

1. Step 1: Write the proportion equation
   144,063,514 : 315,449,300 = 315,449,300 : x
2. Step 2: Convert to fraction form
   144,063,514/315,449,300 = 315,449,300/x
3. Step 3: Cross multiply
   144,063,514x = 315,449,300 × 315,449,300
4. Step 4: Simplify right side
   144,063,514x = 99,508,260,870,490,000
5. Step 5: Solve for x
   x = 99,508,260,870,490,000/144,063,514
6. Step 6: Final answer
   x = 690,724,931.72