Finding the Third Proportional to 19,876,824 and 42,045,419

Step by Step Solution

1. Step 1: Write the proportion equation
   19,876,824 : 42,045,419 = 42,045,419 : x
2. Step 2: Convert to fraction form
   19,876,824/42,045,419 = 42,045,419/x
3. Step 3: Cross multiply
   19,876,824x = 42,045,419 × 42,045,419
4. Step 4: Simplify right side
   19,876,824x = 1,767,817,258,885,561
5. Step 5: Solve for x
   x = 1,767,817,258,885,561/19,876,824
6. Step 6: Final answer
   x = 88,938,618.11