Finding the Third Proportional to 199,058,499 and 298,587,782

Step by Step Solution

1. Step 1: Write the proportion equation
   199,058,499 : 298,587,782 = 298,587,782 : x
2. Step 2: Convert to fraction form
   199,058,499/298,587,782 = 298,587,782/x
3. Step 3: Cross multiply
   199,058,499x = 298,587,782 × 298,587,782
4. Step 4: Simplify right side
   199,058,499x = 89,154,663,559,679,520
5. Step 5: Solve for x
   x = 89,154,663,559,679,520/199,058,499
6. Step 6: Final answer
   x = 447,881,723.25