Finding the Third Proportional to 156,100.50 and 325,413

Step by Step Solution

1. Step 1: Write the proportion equation
   156,100.50 : 325,413 = 325,413 : x
2. Step 2: Convert to fraction form
   156,100.50/325,413 = 325,413/x
3. Step 3: Cross multiply
   156,100.50x = 325,413 × 325,413
4. Step 4: Simplify right side
   156,100.50x = 105,893,620,569
5. Step 5: Solve for x
   x = 105,893,620,569/156,100.50
6. Step 6: Final answer
   x = 678,368.23