Finding the Third Proportional to 742,272 and 1,152,216

Step by Step Solution

1. Step 1: Write the proportion equation
   742,272 : 1,152,216 = 1,152,216 : x
2. Step 2: Convert to fraction form
   742,272/1,152,216 = 1,152,216/x
3. Step 3: Cross multiply
   742,272x = 1,152,216 × 1,152,216
4. Step 4: Simplify right side
   742,272x = 1,327,601,710,656
5. Step 5: Solve for x
   x = 1,327,601,710,656/742,272
6. Step 6: Final answer
   x = 1,788,564.99