Finding the Third Proportional to 152,332 and 243,258

Step by Step Solution

1. Step 1: Write the proportion equation
   152,332 : 243,258 = 243,258 : x
2. Step 2: Convert to fraction form
   152,332/243,258 = 243,258/x
3. Step 3: Cross multiply
   152,332x = 243,258 × 243,258
4. Step 4: Simplify right side
   152,332x = 59,174,454,564
5. Step 5: Solve for x
   x = 59,174,454,564/152,332
6. Step 6: Final answer
   x = 388,457.15