Finding the Third Proportional to 256,221,439,042.50 and 551,003,323,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   256,221,439,042.50 : 551,003,323,621.50 = 551,003,323,621.50 : x
2. Step 2: Convert to fraction form
   256,221,439,042.50/551,003,323,621.50 = 551,003,323,621.50/x
3. Step 3: Cross multiply
   256,221,439,042.50x = 551,003,323,621.50 × 551,003,323,621.50
4. Step 4: Simplify right side
   256,221,439,042.50x = 303,604,662,641,939,491,848,192
5. Step 5: Solve for x
   x = 303,604,662,641,939,491,848,192/256,221,439,042.50
6. Step 6: Final answer
   x = 1,184,930,752,775.84