Finding the Third Proportional to 20,632,458 and 42,939,501

Step by Step Solution

1. Step 1: Write the proportion equation
   20,632,458 : 42,939,501 = 42,939,501 : x
2. Step 2: Convert to fraction form
   20,632,458/42,939,501 = 42,939,501/x
3. Step 3: Cross multiply
   20,632,458x = 42,939,501 × 42,939,501
4. Step 4: Simplify right side
   20,632,458x = 1,843,800,746,129,001
5. Step 5: Solve for x
   x = 1,843,800,746,129,001/20,632,458
6. Step 6: Final answer
   x = 89,364,085.76