Finding the Third Proportional to 19,817,271 and 27,906,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,817,271 : 27,906,322.50 = 27,906,322.50 : x
2. Step 2: Convert to fraction form
   19,817,271/27,906,322.50 = 27,906,322.50/x
3. Step 3: Cross multiply
   19,817,271x = 27,906,322.50 × 27,906,322.50
4. Step 4: Simplify right side
   19,817,271x = 778,762,835,474,006.25
5. Step 5: Solve for x
   x = 778,762,835,474,006.25/19,817,271
6. Step 6: Final answer
   x = 39,297,178.48