Finding the Third Proportional to 369,684 and 553,705.88

Step by Step Solution

1. Step 1: Write the proportion equation
   369,684 : 553,705.88 = 553,705.88 : x
2. Step 2: Convert to fraction form
   369,684/553,705.88 = 553,705.88/x
3. Step 3: Cross multiply
   369,684x = 553,705.88 × 553,705.88
4. Step 4: Simplify right side
   369,684x = 306,590,196,009.52
5. Step 5: Solve for x
   x = 306,590,196,009.52/369,684
6. Step 6: Final answer
   x = 829,330.44