Finding the Third Proportional to 293,973 and 643,987.50

Step by Step Solution

1. Step 1: Write the proportion equation
   293,973 : 643,987.50 = 643,987.50 : x
2. Step 2: Convert to fraction form
   293,973/643,987.50 = 643,987.50/x
3. Step 3: Cross multiply
   293,973x = 643,987.50 × 643,987.50
4. Step 4: Simplify right side
   293,973x = 414,719,900,156.25
5. Step 5: Solve for x
   x = 414,719,900,156.25/293,973
6. Step 6: Final answer
   x = 1,410,741.46