Finding the Third Proportional to 156,938 and 345,550

Step by Step Solution

1. Step 1: Write the proportion equation
   156,938 : 345,550 = 345,550 : x
2. Step 2: Convert to fraction form
   156,938/345,550 = 345,550/x
3. Step 3: Cross multiply
   156,938x = 345,550 × 345,550
4. Step 4: Simplify right side
   156,938x = 119,404,802,500
5. Step 5: Solve for x
   x = 119,404,802,500/156,938
6. Step 6: Final answer
   x = 760,840.60