Finding the Third Proportional to 21,208,385 and 32,428,866

Step by Step Solution

1. Step 1: Write the proportion equation
   21,208,385 : 32,428,866 = 32,428,866 : x
2. Step 2: Convert to fraction form
   21,208,385/32,428,866 = 32,428,866/x
3. Step 3: Cross multiply
   21,208,385x = 32,428,866 × 32,428,866
4. Step 4: Simplify right side
   21,208,385x = 1,051,631,350,045,956
5. Step 5: Solve for x
   x = 1,051,631,350,045,956/21,208,385
6. Step 6: Final answer
   x = 49,585,640.30