Finding the Third Proportional to 2,830,775,615.72 and 4,221,615,262.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830,775,615.72 : 4,221,615,262.78 = 4,221,615,262.78 : x
2. Step 2: Convert to fraction form
   2,830,775,615.72/4,221,615,262.78 = 4,221,615,262.78/x
3. Step 3: Cross multiply
   2,830,775,615.72x = 4,221,615,262.78 × 4,221,615,262.78
4. Step 4: Simplify right side
   2,830,775,615.72x = 17,822,035,426,948,870,144
5. Step 5: Solve for x
   x = 17,822,035,426,948,870,144/2,830,775,615.72
6. Step 6: Final answer
   x = 6,295,813,531.81