Finding the Third Proportional to 257,300,560 and 397,572,024

Step by Step Solution

1. Step 1: Write the proportion equation
   257,300,560 : 397,572,024 = 397,572,024 : x
2. Step 2: Convert to fraction form
   257,300,560/397,572,024 = 397,572,024/x
3. Step 3: Cross multiply
   257,300,560x = 397,572,024 × 397,572,024
4. Step 4: Simplify right side
   257,300,560x = 158,063,514,267,456,576
5. Step 5: Solve for x
   x = 158,063,514,267,456,576/257,300,560
6. Step 6: Final answer
   x = 614,314,692.00