Finding the Third Proportional to 42,347.25 and 89,392.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,347.25 : 89,392.50 = 89,392.50 : x
2. Step 2: Convert to fraction form
   42,347.25/89,392.50 = 89,392.50/x
3. Step 3: Cross multiply
   42,347.25x = 89,392.50 × 89,392.50
4. Step 4: Simplify right side
   42,347.25x = 7,991,019,056.25
5. Step 5: Solve for x
   x = 7,991,019,056.25/42,347.25
6. Step 6: Final answer
   x = 188,702.20