Finding the Third Proportional to 758,216 and 1,140,402

Step by Step Solution

1. Step 1: Write the proportion equation
   758,216 : 1,140,402 = 1,140,402 : x
2. Step 2: Convert to fraction form
   758,216/1,140,402 = 1,140,402/x
3. Step 3: Cross multiply
   758,216x = 1,140,402 × 1,140,402
4. Step 4: Simplify right side
   758,216x = 1,300,516,721,604
5. Step 5: Solve for x
   x = 1,300,516,721,604/758,216
6. Step 6: Final answer
   x = 1,715,232.50