Finding the Third Proportional to 2,587,664 and 5,615,158

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,664 : 5,615,158 = 5,615,158 : x
2. Step 2: Convert to fraction form
   2,587,664/5,615,158 = 5,615,158/x
3. Step 3: Cross multiply
   2,587,664x = 5,615,158 × 5,615,158
4. Step 4: Simplify right side
   2,587,664x = 31,529,999,364,964
5. Step 5: Solve for x
   x = 31,529,999,364,964/2,587,664
6. Step 6: Final answer
   x = 12,184,734.71