Finding the Third Proportional to 155,400 and 334,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,400 : 334,711.50 = 334,711.50 : x
2. Step 2: Convert to fraction form
   155,400/334,711.50 = 334,711.50/x
3. Step 3: Cross multiply
   155,400x = 334,711.50 × 334,711.50
4. Step 4: Simplify right side
   155,400x = 112,031,788,232.25
5. Step 5: Solve for x
   x = 112,031,788,232.25/155,400
6. Step 6: Final answer
   x = 720,925.28