Finding the Third Proportional to 200,243 and 437,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,243 : 437,412.50 = 437,412.50 : x
2. Step 2: Convert to fraction form
   200,243/437,412.50 = 437,412.50/x
3. Step 3: Cross multiply
   200,243x = 437,412.50 × 437,412.50
4. Step 4: Simplify right side
   200,243x = 191,329,695,156.25
5. Step 5: Solve for x
   x = 191,329,695,156.25/200,243
6. Step 6: Final answer
   x = 955,487.56