Finding the Third Proportional to 558,426,620 and 1,227,629,164

Step by Step Solution

1. Step 1: Write the proportion equation
   558,426,620 : 1,227,629,164 = 1,227,629,164 : x
2. Step 2: Convert to fraction form
   558,426,620/1,227,629,164 = 1,227,629,164/x
3. Step 3: Cross multiply
   558,426,620x = 1,227,629,164 × 1,227,629,164
4. Step 4: Simplify right side
   558,426,620x = 1,507,073,364,303,339,008
5. Step 5: Solve for x
   x = 1,507,073,364,303,339,008/558,426,620
6. Step 6: Final answer
   x = 2,698,784,961.76