Finding the Third Proportional to 139,026 and 230,106

Step by Step Solution

1. Step 1: Write the proportion equation
   139,026 : 230,106 = 230,106 : x
2. Step 2: Convert to fraction form
   139,026/230,106 = 230,106/x
3. Step 3: Cross multiply
   139,026x = 230,106 × 230,106
4. Step 4: Simplify right side
   139,026x = 52,948,771,236
5. Step 5: Solve for x
   x = 52,948,771,236/139,026
6. Step 6: Final answer
   x = 380,855.17