Finding the Third Proportional to 138,395.25 and 293,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,395.25 : 293,314.50 = 293,314.50 : x
2. Step 2: Convert to fraction form
   138,395.25/293,314.50 = 293,314.50/x
3. Step 3: Cross multiply
   138,395.25x = 293,314.50 × 293,314.50
4. Step 4: Simplify right side
   138,395.25x = 86,033,395,910.25
5. Step 5: Solve for x
   x = 86,033,395,910.25/138,395.25
6. Step 6: Final answer
   x = 621,649.92