Finding the Third Proportional to 31,239 and 45,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,239 : 45,562.50 = 45,562.50 : x
2. Step 2: Convert to fraction form
   31,239/45,562.50 = 45,562.50/x
3. Step 3: Cross multiply
   31,239x = 45,562.50 × 45,562.50
4. Step 4: Simplify right side
   31,239x = 2,075,941,406.25
5. Step 5: Solve for x
   x = 2,075,941,406.25/31,239
6. Step 6: Final answer
   x = 66,453.52