Finding the Third Proportional to 45,128,478 and 67,800,456

Step by Step Solution

1. Step 1: Write the proportion equation
   45,128,478 : 67,800,456 = 67,800,456 : x
2. Step 2: Convert to fraction form
   45,128,478/67,800,456 = 67,800,456/x
3. Step 3: Cross multiply
   45,128,478x = 67,800,456 × 67,800,456
4. Step 4: Simplify right side
   45,128,478x = 4,596,901,833,807,936
5. Step 5: Solve for x
   x = 4,596,901,833,807,936/45,128,478
6. Step 6: Final answer
   x = 101,862,549.71