Finding the Third Proportional to 1,186,389 and 2,559,402

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186,389 : 2,559,402 = 2,559,402 : x
2. Step 2: Convert to fraction form
   1,186,389/2,559,402 = 2,559,402/x
3. Step 3: Cross multiply
   1,186,389x = 2,559,402 × 2,559,402
4. Step 4: Simplify right side
   1,186,389x = 6,550,538,597,604
5. Step 5: Solve for x
   x = 6,550,538,597,604/1,186,389
6. Step 6: Final answer
   x = 5,521,408.74