Finding the Third Proportional to 156,218 and 340,948

Step by Step Solution

1. Step 1: Write the proportion equation
   156,218 : 340,948 = 340,948 : x
2. Step 2: Convert to fraction form
   156,218/340,948 = 340,948/x
3. Step 3: Cross multiply
   156,218x = 340,948 × 340,948
4. Step 4: Simplify right side
   156,218x = 116,245,538,704
5. Step 5: Solve for x
   x = 116,245,538,704/156,218
6. Step 6: Final answer
   x = 744,123.84