Finding the Third Proportional to 148,081.50 and 216,594

Step by Step Solution

1. Step 1: Write the proportion equation
   148,081.50 : 216,594 = 216,594 : x
2. Step 2: Convert to fraction form
   148,081.50/216,594 = 216,594/x
3. Step 3: Cross multiply
   148,081.50x = 216,594 × 216,594
4. Step 4: Simplify right side
   148,081.50x = 46,912,960,836
5. Step 5: Solve for x
   x = 46,912,960,836/148,081.50
6. Step 6: Final answer
   x = 316,805.01