Finding the Third Proportional to 18,021,739.50 and 37,320,930

Step by Step Solution

1. Step 1: Write the proportion equation
   18,021,739.50 : 37,320,930 = 37,320,930 : x
2. Step 2: Convert to fraction form
   18,021,739.50/37,320,930 = 37,320,930/x
3. Step 3: Cross multiply
   18,021,739.50x = 37,320,930 × 37,320,930
4. Step 4: Simplify right side
   18,021,739.50x = 1,392,851,816,064,900
5. Step 5: Solve for x
   x = 1,392,851,816,064,900/18,021,739.50
6. Step 6: Final answer
   x = 77,287,312.70