Finding the Third Proportional to 5,518,656,154 and 12,105,736,026

Step by Step Solution

1. Step 1: Write the proportion equation
   5,518,656,154 : 12,105,736,026 = 12,105,736,026 : x
2. Step 2: Convert to fraction form
   5,518,656,154/12,105,736,026 = 12,105,736,026/x
3. Step 3: Cross multiply
   5,518,656,154x = 12,105,736,026 × 12,105,736,026
4. Step 4: Simplify right side
   5,518,656,154x = 146,548,844,731,194,277,888
5. Step 5: Solve for x
   x = 146,548,844,731,194,277,888/5,518,656,154
6. Step 6: Final answer
   x = 26,555,168,621.07