Finding the Third Proportional to 20,632,460 and 42,939,505

Step by Step Solution

1. Step 1: Write the proportion equation
   20,632,460 : 42,939,505 = 42,939,505 : x
2. Step 2: Convert to fraction form
   20,632,460/42,939,505 = 42,939,505/x
3. Step 3: Cross multiply
   20,632,460x = 42,939,505 × 42,939,505
4. Step 4: Simplify right side
   20,632,460x = 1,843,801,089,645,025
5. Step 5: Solve for x
   x = 1,843,801,089,645,025/20,632,460
6. Step 6: Final answer
   x = 89,364,093.75