Finding the Third Proportional to 188,547.50 and 406,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,547.50 : 406,612.50 = 406,612.50 : x
2. Step 2: Convert to fraction form
   188,547.50/406,612.50 = 406,612.50/x
3. Step 3: Cross multiply
   188,547.50x = 406,612.50 × 406,612.50
4. Step 4: Simplify right side
   188,547.50x = 165,333,725,156.25
5. Step 5: Solve for x
   x = 165,333,725,156.25/188,547.50
6. Step 6: Final answer
   x = 876,881.03