Finding the Third Proportional to 124,157,648 and 263,443,503

Step by Step Solution

1. Step 1: Write the proportion equation
   124,157,648 : 263,443,503 = 263,443,503 : x
2. Step 2: Convert to fraction form
   124,157,648/263,443,503 = 263,443,503/x
3. Step 3: Cross multiply
   124,157,648x = 263,443,503 × 263,443,503
4. Step 4: Simplify right side
   124,157,648x = 69,402,479,272,911,008
5. Step 5: Solve for x
   x = 69,402,479,272,911,008/124,157,648
6. Step 6: Final answer
   x = 558,986,742.99