Finding the Third Proportional to 179,254 and 390,118

Step by Step Solution

1. Step 1: Write the proportion equation
   179,254 : 390,118 = 390,118 : x
2. Step 2: Convert to fraction form
   179,254/390,118 = 390,118/x
3. Step 3: Cross multiply
   179,254x = 390,118 × 390,118
4. Step 4: Simplify right side
   179,254x = 152,192,053,924
5. Step 5: Solve for x
   x = 152,192,053,924/179,254
6. Step 6: Final answer
   x = 849,030.17