Finding the Third Proportional to 2,478,386 and 5,423,332

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478,386 : 5,423,332 = 5,423,332 : x
2. Step 2: Convert to fraction form
   2,478,386/5,423,332 = 5,423,332/x
3. Step 3: Cross multiply
   2,478,386x = 5,423,332 × 5,423,332
4. Step 4: Simplify right side
   2,478,386x = 29,412,529,982,224
5. Step 5: Solve for x
   x = 29,412,529,982,224/2,478,386
6. Step 6: Final answer
   x = 11,867,614.64