Finding the Third Proportional to 2,612,439,920 and 5,640,468,160

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612,439,920 : 5,640,468,160 = 5,640,468,160 : x
2. Step 2: Convert to fraction form
   2,612,439,920/5,640,468,160 = 5,640,468,160/x
3. Step 3: Cross multiply
   2,612,439,920x = 5,640,468,160 × 5,640,468,160
4. Step 4: Simplify right side
   2,612,439,920x = 31,814,881,063,973,785,600
5. Step 5: Solve for x
   x = 31,814,881,063,973,785,600/2,612,439,920
6. Step 6: Final answer
   x = 12,178,224,969.08