Finding the Third Proportional to 139,064.63 and 302,914.13

Step by Step Solution

1. Step 1: Write the proportion equation
   139,064.63 : 302,914.13 = 302,914.13 : x
2. Step 2: Convert to fraction form
   139,064.63/302,914.13 = 302,914.13/x
3. Step 3: Cross multiply
   139,064.63x = 302,914.13 × 302,914.13
4. Step 4: Simplify right side
   139,064.63x = 91,756,967,124.52
5. Step 5: Solve for x
   x = 91,756,967,124.52/139,064.63
6. Step 6: Final answer
   x = 659,815.30