Finding the Third Proportional to 179,026 and 390,008

Step by Step Solution

1. Step 1: Write the proportion equation
   179,026 : 390,008 = 390,008 : x
2. Step 2: Convert to fraction form
   179,026/390,008 = 390,008/x
3. Step 3: Cross multiply
   179,026x = 390,008 × 390,008
4. Step 4: Simplify right side
   179,026x = 152,106,240,064
5. Step 5: Solve for x
   x = 152,106,240,064/179,026
6. Step 6: Final answer
   x = 849,632.12