Finding the Third Proportional to 3,645,468 and 7,977,168

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,468 : 7,977,168 = 7,977,168 : x
2. Step 2: Convert to fraction form
   3,645,468/7,977,168 = 7,977,168/x
3. Step 3: Cross multiply
   3,645,468x = 7,977,168 × 7,977,168
4. Step 4: Simplify right side
   3,645,468x = 63,635,209,300,224
5. Step 5: Solve for x
   x = 63,635,209,300,224/3,645,468
6. Step 6: Final answer
   x = 17,455,978.03