Finding the Third Proportional to 153,196.31 and 336,625.88

Step by Step Solution

1. Step 1: Write the proportion equation
   153,196.31 : 336,625.88 = 336,625.88 : x
2. Step 2: Convert to fraction form
   153,196.31/336,625.88 = 336,625.88/x
3. Step 3: Cross multiply
   153,196.31x = 336,625.88 × 336,625.88
4. Step 4: Simplify right side
   153,196.31x = 113,316,979,719.52
5. Step 5: Solve for x
   x = 113,316,979,719.52/153,196.31
6. Step 6: Final answer
   x = 739,684.77