Finding the Third Proportional to 1,186,636 and 2,457,380

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186,636 : 2,457,380 = 2,457,380 : x
2. Step 2: Convert to fraction form
   1,186,636/2,457,380 = 2,457,380/x
3. Step 3: Cross multiply
   1,186,636x = 2,457,380 × 2,457,380
4. Step 4: Simplify right side
   1,186,636x = 6,038,716,464,400
5. Step 5: Solve for x
   x = 6,038,716,464,400/1,186,636
6. Step 6: Final answer
   x = 5,088,937.52