Finding the Third Proportional to 243,788 and 370,386

Step by Step Solution

1. Step 1: Write the proportion equation
   243,788 : 370,386 = 370,386 : x
2. Step 2: Convert to fraction form
   243,788/370,386 = 370,386/x
3. Step 3: Cross multiply
   243,788x = 370,386 × 370,386
4. Step 4: Simplify right side
   243,788x = 137,185,788,996
5. Step 5: Solve for x
   x = 137,185,788,996/243,788
6. Step 6: Final answer
   x = 562,725.77