Finding the Third Proportional to 21,622,185 and 29,123,617.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,622,185 : 29,123,617.50 = 29,123,617.50 : x
2. Step 2: Convert to fraction form
   21,622,185/29,123,617.50 = 29,123,617.50/x
3. Step 3: Cross multiply
   21,622,185x = 29,123,617.50 × 29,123,617.50
4. Step 4: Simplify right side
   21,622,185x = 848,185,096,286,306.25
5. Step 5: Solve for x
   x = 848,185,096,286,306.25/21,622,185
6. Step 6: Final answer
   x = 39,227,538.58