Finding the Third Proportional to 5,529,187,453 and 12,185,399,429

Step by Step Solution

1. Step 1: Write the proportion equation
   5,529,187,453 : 12,185,399,429 = 12,185,399,429 : x
2. Step 2: Convert to fraction form
   5,529,187,453/12,185,399,429 = 12,185,399,429/x
3. Step 3: Cross multiply
   5,529,187,453x = 12,185,399,429 × 12,185,399,429
4. Step 4: Simplify right side
   5,529,187,453x = 148,483,959,244,273,516,544
5. Step 5: Solve for x
   x = 148,483,959,244,273,516,544/5,529,187,453
6. Step 6: Final answer
   x = 26,854,571,400.67