Finding the Third Proportional to 10,612.13 and 19,699.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,612.13 : 19,699.88 = 19,699.88 : x
2. Step 2: Convert to fraction form
   10,612.13/19,699.88 = 19,699.88/x
3. Step 3: Cross multiply
   10,612.13x = 19,699.88 × 19,699.88
4. Step 4: Simplify right side
   10,612.13x = 388,085,075.02
5. Step 5: Solve for x
   x = 388,085,075.02/10,612.13
6. Step 6: Final answer
   x = 36,569.97