Finding the Third Proportional to 256,221,439,012 and 551,003,323,547

Step by Step Solution

1. Step 1: Write the proportion equation
   256,221,439,012 : 551,003,323,547 = 551,003,323,547 : x
2. Step 2: Convert to fraction form
   256,221,439,012/551,003,323,547 = 551,003,323,547/x
3. Step 3: Cross multiply
   256,221,439,012x = 551,003,323,547 × 551,003,323,547
4. Step 4: Simplify right side
   256,221,439,012x = 303,604,662,559,839,984,025,600
5. Step 5: Solve for x
   x = 303,604,662,559,839,984,025,600/256,221,439,012
6. Step 6: Final answer
   x = 1,184,930,752,596.47