Finding the Third Proportional to 19,912 and 29,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,912 : 29,490.50 = 29,490.50 : x
2. Step 2: Convert to fraction form
   19,912/29,490.50 = 29,490.50/x
3. Step 3: Cross multiply
   19,912x = 29,490.50 × 29,490.50
4. Step 4: Simplify right side
   19,912x = 869,689,590.25
5. Step 5: Solve for x
   x = 869,689,590.25/19,912
6. Step 6: Final answer
   x = 43,676.66