Finding the Third Proportional to 13,865,782.50 and 21,638,086.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,865,782.50 : 21,638,086.88 = 21,638,086.88 : x
2. Step 2: Convert to fraction form
   13,865,782.50/21,638,086.88 = 21,638,086.88/x
3. Step 3: Cross multiply
   13,865,782.50x = 21,638,086.88 × 21,638,086.88
4. Step 4: Simplify right side
   13,865,782.50x = 468,206,803,610,047.25
5. Step 5: Solve for x
   x = 468,206,803,610,047.25/13,865,782.50
6. Step 6: Final answer
   x = 33,767,066.78