Finding the Third Proportional to 358,425 and 559,411.50

Step by Step Solution

1. Step 1: Write the proportion equation
   358,425 : 559,411.50 = 559,411.50 : x
2. Step 2: Convert to fraction form
   358,425/559,411.50 = 559,411.50/x
3. Step 3: Cross multiply
   358,425x = 559,411.50 × 559,411.50
4. Step 4: Simplify right side
   358,425x = 312,941,226,332.25
5. Step 5: Solve for x
   x = 312,941,226,332.25/358,425
6. Step 6: Final answer
   x = 873,101.00