Finding the Third Proportional to 19,812.09 and 29,390.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,812.09 : 29,390.63 = 29,390.63 : x
2. Step 2: Convert to fraction form
   19,812.09/29,390.63 = 29,390.63/x
3. Step 3: Cross multiply
   19,812.09x = 29,390.63 × 29,390.63
4. Step 4: Simplify right side
   19,812.09x = 863,808,837.89
5. Step 5: Solve for x
   x = 863,808,837.89/19,812.09
6. Step 6: Final answer
   x = 43,600.08