Finding the Third Proportional to 20,069,478 and 42,728,076

Step by Step Solution

1. Step 1: Write the proportion equation
   20,069,478 : 42,728,076 = 42,728,076 : x
2. Step 2: Convert to fraction form
   20,069,478/42,728,076 = 42,728,076/x
3. Step 3: Cross multiply
   20,069,478x = 42,728,076 × 42,728,076
4. Step 4: Simplify right side
   20,069,478x = 1,825,688,478,661,776
5. Step 5: Solve for x
   x = 1,825,688,478,661,776/20,069,478
6. Step 6: Final answer
   x = 90,968,408.78