Finding the Third Proportional to 20,632,464 and 42,939,520

Step by Step Solution

1. Step 1: Write the proportion equation
   20,632,464 : 42,939,520 = 42,939,520 : x
2. Step 2: Convert to fraction form
   20,632,464/42,939,520 = 42,939,520/x
3. Step 3: Cross multiply
   20,632,464x = 42,939,520 × 42,939,520
4. Step 4: Simplify right side
   20,632,464x = 1,843,802,377,830,400
5. Step 5: Solve for x
   x = 1,843,802,377,830,400/20,632,464
6. Step 6: Final answer
   x = 89,364,138.86