Finding the Third Proportional to 609,699 and 1,402,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   609,699 : 1,402,279.50 = 1,402,279.50 : x
2. Step 2: Convert to fraction form
   609,699/1,402,279.50 = 1,402,279.50/x
3. Step 3: Cross multiply
   609,699x = 1,402,279.50 × 1,402,279.50
4. Step 4: Simplify right side
   609,699x = 1,966,387,796,120.25
5. Step 5: Solve for x
   x = 1,966,387,796,120.25/609,699
6. Step 6: Final answer
   x = 3,225,177.99