Finding the Third Proportional to 42,550.50 and 70,670.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,550.50 : 70,670.50 = 70,670.50 : x
2. Step 2: Convert to fraction form
   42,550.50/70,670.50 = 70,670.50/x
3. Step 3: Cross multiply
   42,550.50x = 70,670.50 × 70,670.50
4. Step 4: Simplify right side
   42,550.50x = 4,994,319,570.25
5. Step 5: Solve for x
   x = 4,994,319,570.25/42,550.50
6. Step 6: Final answer
   x = 117,373.93