Finding the Third Proportional to 79,721,264 and 172,665,200

Step by Step Solution

1. Step 1: Write the proportion equation
   79,721,264 : 172,665,200 = 172,665,200 : x
2. Step 2: Convert to fraction form
   79,721,264/172,665,200 = 172,665,200/x
3. Step 3: Cross multiply
   79,721,264x = 172,665,200 × 172,665,200
4. Step 4: Simplify right side
   79,721,264x = 29,813,271,291,040,000
5. Step 5: Solve for x
   x = 29,813,271,291,040,000/79,721,264
6. Step 6: Final answer
   x = 373,968,873.49