Finding the Third Proportional to 148,038 and 216,060

Step by Step Solution

1. Step 1: Write the proportion equation
   148,038 : 216,060 = 216,060 : x
2. Step 2: Convert to fraction form
   148,038/216,060 = 216,060/x
3. Step 3: Cross multiply
   148,038x = 216,060 × 216,060
4. Step 4: Simplify right side
   148,038x = 46,681,923,600
5. Step 5: Solve for x
   x = 46,681,923,600/148,038
6. Step 6: Final answer
   x = 315,337.44