Finding the Third Proportional to 67,058.63 and 139,625.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,058.63 : 139,625.25 = 139,625.25 : x
2. Step 2: Convert to fraction form
   67,058.63/139,625.25 = 139,625.25/x
3. Step 3: Cross multiply
   67,058.63x = 139,625.25 × 139,625.25
4. Step 4: Simplify right side
   67,058.63x = 19,495,210,437.56
5. Step 5: Solve for x
   x = 19,495,210,437.56/67,058.63
6. Step 6: Final answer
   x = 290,718.91