Finding the Third Proportional to 358,386 and 769,894.50

Step by Step Solution

1. Step 1: Write the proportion equation
   358,386 : 769,894.50 = 769,894.50 : x
2. Step 2: Convert to fraction form
   358,386/769,894.50 = 769,894.50/x
3. Step 3: Cross multiply
   358,386x = 769,894.50 × 769,894.50
4. Step 4: Simplify right side
   358,386x = 592,737,541,130.25
5. Step 5: Solve for x
   x = 592,737,541,130.25/358,386
6. Step 6: Final answer
   x = 1,653,908.19