Finding the Third Proportional to 5,591,031,090 and 12,423,191,508

Step by Step Solution

1. Step 1: Write the proportion equation
   5,591,031,090 : 12,423,191,508 = 12,423,191,508 : x
2. Step 2: Convert to fraction form
   5,591,031,090/12,423,191,508 = 12,423,191,508/x
3. Step 3: Cross multiply
   5,591,031,090x = 12,423,191,508 × 12,423,191,508
4. Step 4: Simplify right side
   5,591,031,090x = 154,335,687,244,443,320,320
5. Step 5: Solve for x
   x = 154,335,687,244,443,320,320/5,591,031,090
6. Step 6: Final answer
   x = 27,604,154,718.53