Finding the Third Proportional to 302,736 and 432,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,736 : 432,112.50 = 432,112.50 : x
2. Step 2: Convert to fraction form
   302,736/432,112.50 = 432,112.50/x
3. Step 3: Cross multiply
   302,736x = 432,112.50 × 432,112.50
4. Step 4: Simplify right side
   302,736x = 186,721,212,656.25
5. Step 5: Solve for x
   x = 186,721,212,656.25/302,736
6. Step 6: Final answer
   x = 616,779.02