Finding the Third Proportional to 380,476.50 and 803,370

Step by Step Solution

1. Step 1: Write the proportion equation
   380,476.50 : 803,370 = 803,370 : x
2. Step 2: Convert to fraction form
   380,476.50/803,370 = 803,370/x
3. Step 3: Cross multiply
   380,476.50x = 803,370 × 803,370
4. Step 4: Simplify right side
   380,476.50x = 645,403,356,900
5. Step 5: Solve for x
   x = 645,403,356,900/380,476.50
6. Step 6: Final answer
   x = 1,696,302.81