Finding the Third Proportional to 212 and 388
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Solution
The third proportional to 212 and 388 is: 710.11
Step by Step Solution
- Step 1: Write the proportion equation
212 : 388 = 388 : x - Step 2: Convert to fraction form
212/388 = 388/x - Step 3: Cross multiply
212x = 388 × 388 - Step 4: Simplify right side
212x = 150,544 - Step 5: Solve for x
x = 150,544/212 - Step 6: Final answer
x = 710.11
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