Finding the Third Proportional to 20,632,470 and 42,939,532

Step by Step Solution

1. Step 1: Write the proportion equation
   20,632,470 : 42,939,532 = 42,939,532 : x
2. Step 2: Convert to fraction form
   20,632,470/42,939,532 = 42,939,532/x
3. Step 3: Cross multiply
   20,632,470x = 42,939,532 × 42,939,532
4. Step 4: Simplify right side
   20,632,470x = 1,843,803,408,379,024
5. Step 5: Solve for x
   x = 1,843,803,408,379,024/20,632,470
6. Step 6: Final answer
   x = 89,364,162.82