Finding the Third Proportional to 19,629,220 and 42,897,608

Step by Step Solution

1. Step 1: Write the proportion equation
   19,629,220 : 42,897,608 = 42,897,608 : x
2. Step 2: Convert to fraction form
   19,629,220/42,897,608 = 42,897,608/x
3. Step 3: Cross multiply
   19,629,220x = 42,897,608 × 42,897,608
4. Step 4: Simplify right side
   19,629,220x = 1,840,204,772,121,664
5. Step 5: Solve for x
   x = 1,840,204,772,121,664/19,629,220
6. Step 6: Final answer
   x = 93,748,237.18