Finding the Third Proportional to 152,312 and 334,990

Step by Step Solution

1. Step 1: Write the proportion equation
   152,312 : 334,990 = 334,990 : x
2. Step 2: Convert to fraction form
   152,312/334,990 = 334,990/x
3. Step 3: Cross multiply
   152,312x = 334,990 × 334,990
4. Step 4: Simplify right side
   152,312x = 112,218,300,100
5. Step 5: Solve for x
   x = 112,218,300,100/152,312
6. Step 6: Final answer
   x = 736,765.98