Finding the Third Proportional to 31,921,209 and 49,528,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,921,209 : 49,528,543.50 = 49,528,543.50 : x
2. Step 2: Convert to fraction form
   31,921,209/49,528,543.50 = 49,528,543.50/x
3. Step 3: Cross multiply
   31,921,209x = 49,528,543.50 × 49,528,543.50
4. Step 4: Simplify right side
   31,921,209x = 2,453,076,621,231,392
5. Step 5: Solve for x
   x = 2,453,076,621,231,392/31,921,209
6. Step 6: Final answer
   x = 76,847,860.66