Finding the Third Proportional to 56,838 and 86,061

Step by Step Solution

1. Step 1: Write the proportion equation
   56,838 : 86,061 = 86,061 : x
2. Step 2: Convert to fraction form
   56,838/86,061 = 86,061/x
3. Step 3: Cross multiply
   56,838x = 86,061 × 86,061
4. Step 4: Simplify right side
   56,838x = 7,406,495,721
5. Step 5: Solve for x
   x = 7,406,495,721/56,838
6. Step 6: Final answer
   x = 130,308.87