Finding the Third Proportional to 156,925 and 345,521

Step by Step Solution

1. Step 1: Write the proportion equation
   156,925 : 345,521 = 345,521 : x
2. Step 2: Convert to fraction form
   156,925/345,521 = 345,521/x
3. Step 3: Cross multiply
   156,925x = 345,521 × 345,521
4. Step 4: Simplify right side
   156,925x = 119,384,761,441
5. Step 5: Solve for x
   x = 119,384,761,441/156,925
6. Step 6: Final answer
   x = 760,775.92