Finding the Third Proportional to 492,186 and 771,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   492,186 : 771,088.50 = 771,088.50 : x
2. Step 2: Convert to fraction form
   492,186/771,088.50 = 771,088.50/x
3. Step 3: Cross multiply
   492,186x = 771,088.50 × 771,088.50
4. Step 4: Simplify right side
   492,186x = 594,577,474,832.25
5. Step 5: Solve for x
   x = 594,577,474,832.25/492,186
6. Step 6: Final answer
   x = 1,208,034.11