Finding the Third Proportional to 58,164,547.50 and 90,063,846

Step by Step Solution

1. Step 1: Write the proportion equation
   58,164,547.50 : 90,063,846 = 90,063,846 : x
2. Step 2: Convert to fraction form
   58,164,547.50/90,063,846 = 90,063,846/x
3. Step 3: Cross multiply
   58,164,547.50x = 90,063,846 × 90,063,846
4. Step 4: Simplify right side
   58,164,547.50x = 8,111,496,356,311,716
5. Step 5: Solve for x
   x = 8,111,496,356,311,716/58,164,547.50
6. Step 6: Final answer
   x = 139,457,740.24