Finding the Third Proportional to 156,988 and 240,090

Step by Step Solution

1. Step 1: Write the proportion equation
   156,988 : 240,090 = 240,090 : x
2. Step 2: Convert to fraction form
   156,988/240,090 = 240,090/x
3. Step 3: Cross multiply
   156,988x = 240,090 × 240,090
4. Step 4: Simplify right side
   156,988x = 57,643,208,100
5. Step 5: Solve for x
   x = 57,643,208,100/156,988
6. Step 6: Final answer
   x = 367,182.26