Finding the Third Proportional to 59,831,456 and 128,600,900

Step by Step Solution

1. Step 1: Write the proportion equation
   59,831,456 : 128,600,900 = 128,600,900 : x
2. Step 2: Convert to fraction form
   59,831,456/128,600,900 = 128,600,900/x
3. Step 3: Cross multiply
   59,831,456x = 128,600,900 × 128,600,900
4. Step 4: Simplify right side
   59,831,456x = 16,538,191,480,810,000
5. Step 5: Solve for x
   x = 16,538,191,480,810,000/59,831,456
6. Step 6: Final answer
   x = 276,412,987.19