Finding the Third Proportional to 878,724 and 1,406,530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   878,724 : 1,406,530.50 = 1,406,530.50 : x
2. Step 2: Convert to fraction form
   878,724/1,406,530.50 = 1,406,530.50/x
3. Step 3: Cross multiply
   878,724x = 1,406,530.50 × 1,406,530.50
4. Step 4: Simplify right side
   878,724x = 1,978,328,047,430.25
5. Step 5: Solve for x
   x = 1,978,328,047,430.25/878,724
6. Step 6: Final answer
   x = 2,251,364.53