Finding the Third Proportional to 112,702.50 and 237,980

Step by Step Solution

1. Step 1: Write the proportion equation
   112,702.50 : 237,980 = 237,980 : x
2. Step 2: Convert to fraction form
   112,702.50/237,980 = 237,980/x
3. Step 3: Cross multiply
   112,702.50x = 237,980 × 237,980
4. Step 4: Simplify right side
   112,702.50x = 56,634,480,400
5. Step 5: Solve for x
   x = 56,634,480,400/112,702.50
6. Step 6: Final answer
   x = 502,513.08