Finding the Third Proportional to 286,097.25 and 621,354

Step by Step Solution

1. Step 1: Write the proportion equation
   286,097.25 : 621,354 = 621,354 : x
2. Step 2: Convert to fraction form
   286,097.25/621,354 = 621,354/x
3. Step 3: Cross multiply
   286,097.25x = 621,354 × 621,354
4. Step 4: Simplify right side
   286,097.25x = 386,080,793,316
5. Step 5: Solve for x
   x = 386,080,793,316/286,097.25
6. Step 6: Final answer
   x = 1,349,473.98