Finding the Third Proportional to 6,015,688 and 12,990,173

Step by Step Solution

1. Step 1: Write the proportion equation
   6,015,688 : 12,990,173 = 12,990,173 : x
2. Step 2: Convert to fraction form
   6,015,688/12,990,173 = 12,990,173/x
3. Step 3: Cross multiply
   6,015,688x = 12,990,173 × 12,990,173
4. Step 4: Simplify right side
   6,015,688x = 168,744,594,569,929
5. Step 5: Solve for x
   x = 168,744,594,569,929/6,015,688
6. Step 6: Final answer
   x = 28,050,755.72