Finding the Third Proportional to 19,788,912 and 30,271,866

Step by Step Solution

1. Step 1: Write the proportion equation
   19,788,912 : 30,271,866 = 30,271,866 : x
2. Step 2: Convert to fraction form
   19,788,912/30,271,866 = 30,271,866/x
3. Step 3: Cross multiply
   19,788,912x = 30,271,866 × 30,271,866
4. Step 4: Simplify right side
   19,788,912x = 916,385,871,121,956
5. Step 5: Solve for x
   x = 916,385,871,121,956/19,788,912
6. Step 6: Final answer
   x = 46,308,047.21