Finding the Third Proportional to 256,221,439,045 and 551,003,323,626

Step by Step Solution

1. Step 1: Write the proportion equation
   256,221,439,045 : 551,003,323,626 = 551,003,323,626 : x
2. Step 2: Convert to fraction form
   256,221,439,045/551,003,323,626 = 551,003,323,626/x
3. Step 3: Cross multiply
   256,221,439,045x = 551,003,323,626 × 551,003,323,626
4. Step 4: Simplify right side
   256,221,439,045x = 303,604,662,646,898,501,353,472
5. Step 5: Solve for x
   x = 303,604,662,646,898,501,353,472/256,221,439,045
6. Step 6: Final answer
   x = 1,184,930,752,783.64