Finding the Third Proportional to 20,603,360 and 42,902,208

Step by Step Solution

1. Step 1: Write the proportion equation
   20,603,360 : 42,902,208 = 42,902,208 : x
2. Step 2: Convert to fraction form
   20,603,360/42,902,208 = 42,902,208/x
3. Step 3: Cross multiply
   20,603,360x = 42,902,208 × 42,902,208
4. Step 4: Simplify right side
   20,603,360x = 1,840,599,451,275,264
5. Step 5: Solve for x
   x = 1,840,599,451,275,264/20,603,360
6. Step 6: Final answer
   x = 89,334,916.79