Finding the Third Proportional to 12,905,715 and 28,087,366.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,905,715 : 28,087,366.50 = 28,087,366.50 : x
2. Step 2: Convert to fraction form
   12,905,715/28,087,366.50 = 28,087,366.50/x
3. Step 3: Cross multiply
   12,905,715x = 28,087,366.50 × 28,087,366.50
4. Step 4: Simplify right side
   12,905,715x = 788,900,156,905,322.25
5. Step 5: Solve for x
   x = 788,900,156,905,322.25/12,905,715
6. Step 6: Final answer
   x = 61,127,969.81