Finding the Third Proportional to 19,998,144 and 42,830,424

Step by Step Solution

1. Step 1: Write the proportion equation
   19,998,144 : 42,830,424 = 42,830,424 : x
2. Step 2: Convert to fraction form
   19,998,144/42,830,424 = 42,830,424/x
3. Step 3: Cross multiply
   19,998,144x = 42,830,424 × 42,830,424
4. Step 4: Simplify right side
   19,998,144x = 1,834,445,220,019,776
5. Step 5: Solve for x
   x = 1,834,445,220,019,776/19,998,144
6. Step 6: Final answer
   x = 91,730,773.62