Finding the Third Proportional to 148,322 and 307,158

Step by Step Solution

1. Step 1: Write the proportion equation
   148,322 : 307,158 = 307,158 : x
2. Step 2: Convert to fraction form
   148,322/307,158 = 307,158/x
3. Step 3: Cross multiply
   148,322x = 307,158 × 307,158
4. Step 4: Simplify right side
   148,322x = 94,346,036,964
5. Step 5: Solve for x
   x = 94,346,036,964/148,322
6. Step 6: Final answer
   x = 636,089.30