Finding the Third Proportional to 12,307.50 and 19,406.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,307.50 : 19,406.25 = 19,406.25 : x
2. Step 2: Convert to fraction form
   12,307.50/19,406.25 = 19,406.25/x
3. Step 3: Cross multiply
   12,307.50x = 19,406.25 × 19,406.25
4. Step 4: Simplify right side
   12,307.50x = 376,602,539.06
5. Step 5: Solve for x
   x = 376,602,539.06/12,307.50
6. Step 6: Final answer
   x = 30,599.43