Finding the Third Proportional to 136,090 and 298,748

Step by Step Solution

1. Step 1: Write the proportion equation
   136,090 : 298,748 = 298,748 : x
2. Step 2: Convert to fraction form
   136,090/298,748 = 298,748/x
3. Step 3: Cross multiply
   136,090x = 298,748 × 298,748
4. Step 4: Simplify right side
   136,090x = 89,250,367,504
5. Step 5: Solve for x
   x = 89,250,367,504/136,090
6. Step 6: Final answer
   x = 655,818.70