Finding the Third Proportional to 65,590.88 and 139,064.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,590.88 : 139,064.06 = 139,064.06 : x
2. Step 2: Convert to fraction form
   65,590.88/139,064.06 = 139,064.06/x
3. Step 3: Cross multiply
   65,590.88x = 139,064.06 × 139,064.06
4. Step 4: Simplify right side
   65,590.88x = 19,338,813,479.00
5. Step 5: Solve for x
   x = 19,338,813,479.00/65,590.88
6. Step 6: Final answer
   x = 294,840.00