Finding the Third Proportional to 156,654 and 389,569.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,654 : 389,569.50 = 389,569.50 : x
2. Step 2: Convert to fraction form
   156,654/389,569.50 = 389,569.50/x
3. Step 3: Cross multiply
   156,654x = 389,569.50 × 389,569.50
4. Step 4: Simplify right side
   156,654x = 151,764,395,330.25
5. Step 5: Solve for x
   x = 151,764,395,330.25/156,654
6. Step 6: Final answer
   x = 968,787.23