Finding the Third Proportional to 37,139,323.50 and 81,453,105

Step by Step Solution

1. Step 1: Write the proportion equation
   37,139,323.50 : 81,453,105 = 81,453,105 : x
2. Step 2: Convert to fraction form
   37,139,323.50/81,453,105 = 81,453,105/x
3. Step 3: Cross multiply
   37,139,323.50x = 81,453,105 × 81,453,105
4. Step 4: Simplify right side
   37,139,323.50x = 6,634,608,314,141,025
5. Step 5: Solve for x
   x = 6,634,608,314,141,025/37,139,323.50
6. Step 6: Final answer
   x = 178,641,065.29