Finding the Third Proportional to 18,172,362 and 38,899,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,172,362 : 38,899,108.50 = 38,899,108.50 : x
2. Step 2: Convert to fraction form
   18,172,362/38,899,108.50 = 38,899,108.50/x
3. Step 3: Cross multiply
   18,172,362x = 38,899,108.50 × 38,899,108.50
4. Step 4: Simplify right side
   18,172,362x = 1,513,140,642,094,772.25
5. Step 5: Solve for x
   x = 1,513,140,642,094,772.25/18,172,362
6. Step 6: Final answer
   x = 83,266,041.15