Finding the Third Proportional to 156,654 and 369,988

Step by Step Solution

1. Step 1: Write the proportion equation
   156,654 : 369,988 = 369,988 : x
2. Step 2: Convert to fraction form
   156,654/369,988 = 369,988/x
3. Step 3: Cross multiply
   156,654x = 369,988 × 369,988
4. Step 4: Simplify right side
   156,654x = 136,891,120,144
5. Step 5: Solve for x
   x = 136,891,120,144/156,654
6. Step 6: Final answer
   x = 873,843.76