Finding the Third Proportional to 3,663,264 and 7,977,360

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,264 : 7,977,360 = 7,977,360 : x
2. Step 2: Convert to fraction form
   3,663,264/7,977,360 = 7,977,360/x
3. Step 3: Cross multiply
   3,663,264x = 7,977,360 × 7,977,360
4. Step 4: Simplify right side
   3,663,264x = 63,638,272,569,600
5. Step 5: Solve for x
   x = 63,638,272,569,600/3,663,264
6. Step 6: Final answer
   x = 17,372,013.75