Finding the Third Proportional to 31,483.69 and 64,813.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,483.69 : 64,813.50 = 64,813.50 : x
2. Step 2: Convert to fraction form
   31,483.69/64,813.50 = 64,813.50/x
3. Step 3: Cross multiply
   31,483.69x = 64,813.50 × 64,813.50
4. Step 4: Simplify right side
   31,483.69x = 4,200,789,782.25
5. Step 5: Solve for x
   x = 4,200,789,782.25/31,483.69
6. Step 6: Final answer
   x = 133,427.50