Finding the Third Proportional to 3,558,456,161 and 7,411,443,562

Step by Step Solution

1. Step 1: Write the proportion equation
   3,558,456,161 : 7,411,443,562 = 7,411,443,562 : x
2. Step 2: Convert to fraction form
   3,558,456,161/7,411,443,562 = 7,411,443,562/x
3. Step 3: Cross multiply
   3,558,456,161x = 7,411,443,562 × 7,411,443,562
4. Step 4: Simplify right side
   3,558,456,161x = 54,929,495,672,711,249,920
5. Step 5: Solve for x
   x = 54,929,495,672,711,249,920/3,558,456,161
6. Step 6: Final answer
   x = 15,436,327,774.59