Finding the Third Proportional to 1,243,896 and 2,598,264

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,896 : 2,598,264 = 2,598,264 : x
2. Step 2: Convert to fraction form
   1,243,896/2,598,264 = 2,598,264/x
3. Step 3: Cross multiply
   1,243,896x = 2,598,264 × 2,598,264
4. Step 4: Simplify right side
   1,243,896x = 6,750,975,813,696
5. Step 5: Solve for x
   x = 6,750,975,813,696/1,243,896
6. Step 6: Final answer
   x = 5,427,283.16