Finding the Third Proportional to 77,710.50 and 169,470

Step by Step Solution

1. Step 1: Write the proportion equation
   77,710.50 : 169,470 = 169,470 : x
2. Step 2: Convert to fraction form
   77,710.50/169,470 = 169,470/x
3. Step 3: Cross multiply
   77,710.50x = 169,470 × 169,470
4. Step 4: Simplify right side
   77,710.50x = 28,720,080,900
5. Step 5: Solve for x
   x = 28,720,080,900/77,710.50
6. Step 6: Final answer
   x = 369,577.87