Finding the Third Proportional to 1,186,640 and 2,457,388

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186,640 : 2,457,388 = 2,457,388 : x
2. Step 2: Convert to fraction form
   1,186,640/2,457,388 = 2,457,388/x
3. Step 3: Cross multiply
   1,186,640x = 2,457,388 × 2,457,388
4. Step 4: Simplify right side
   1,186,640x = 6,038,755,782,544
5. Step 5: Solve for x
   x = 6,038,755,782,544/1,186,640
6. Step 6: Final answer
   x = 5,088,953.50