Finding the Third Proportional to 1,186,308 and 2,559,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186,308 : 2,559,240 = 2,559,240 : x
2. Step 2: Convert to fraction form
   1,186,308/2,559,240 = 2,559,240/x
3. Step 3: Cross multiply
   1,186,308x = 2,559,240 × 2,559,240
4. Step 4: Simplify right side
   1,186,308x = 6,549,709,377,600
5. Step 5: Solve for x
   x = 6,549,709,377,600/1,186,308
6. Step 6: Final answer
   x = 5,521,086.75