Finding the Third Proportional to 77,485 and 169,710

Step by Step Solution

1. Step 1: Write the proportion equation
   77,485 : 169,710 = 169,710 : x
2. Step 2: Convert to fraction form
   77,485/169,710 = 169,710/x
3. Step 3: Cross multiply
   77,485x = 169,710 × 169,710
4. Step 4: Simplify right side
   77,485x = 28,801,484,100
5. Step 5: Solve for x
   x = 28,801,484,100/77,485
6. Step 6: Final answer
   x = 371,704.00