Finding the Third Proportional to 139,077 and 284,765.63

Step by Step Solution

1. Step 1: Write the proportion equation
   139,077 : 284,765.63 = 284,765.63 : x
2. Step 2: Convert to fraction form
   139,077/284,765.63 = 284,765.63/x
3. Step 3: Cross multiply
   139,077x = 284,765.63 × 284,765.63
4. Step 4: Simplify right side
   139,077x = 81,091,461,181.64
5. Step 5: Solve for x
   x = 81,091,461,181.64/139,077
6. Step 6: Final answer
   x = 583,068.81