Finding the Third Proportional to 63,763 and 139,646

Step by Step Solution

1. Step 1: Write the proportion equation
   63,763 : 139,646 = 139,646 : x
2. Step 2: Convert to fraction form
   63,763/139,646 = 139,646/x
3. Step 3: Cross multiply
   63,763x = 139,646 × 139,646
4. Step 4: Simplify right side
   63,763x = 19,501,005,316
5. Step 5: Solve for x
   x = 19,501,005,316/63,763
6. Step 6: Final answer
   x = 305,835.76